Friday, 22 May 2009

Bluebells in Banstead

A very belated post but the Banstead Botany Blog could not let spring go by without mention of the Bluebells in Banstead Woods. Bluebell woods are quintessentially British, the plant itself (Endymion non-scriptus) is native to a small part of maritime Europe but only in the British Isles does it reach such levels of monoculture that is typical of our springtime landscape. In the east it is very much a woodland plant but in the far west it often grows in more open situations.

Banstead Woods is well known for its annual display and this year was particularly good. However this may not have continued to be so because until recently the display was under threat. The reason was Rhododendron ponticum that up until about 15 years ago was taking over the understorey of the Woods with about a quarter of the total area covered. However a concerted programme of annual “Rhododendron Bashing” organised by Reigate and Banstead Council (who own the Woods) and a local conservation group (the DCMP) has had a dramatic effect. Not only is the woodland floor now more open and hence views extend further but slowly the Bluebells are recolonising the cleared areas to increase the expanse of blue. The display and scent early on a spring morning is rather special.

A few years back someone suggested to me that the Bluebell display in this country owes its existence to the extinction of Wild Boar (that are partial to bluebells) in medieval times and that their reintroduction would lead to the disappearance of Bluebell woods. I don’t know if that is true, luckily as far as I am aware there are no wild boar around here!

Being me I had to include a close up of a flower, not just blue but also white! It seems to me that white variants suffer a distinct competitive disadvantage, they do not seem to clump up very often remaining as single spikes and certainly do not appear in the same place each year.


Wednesday, 22 April 2009

A bit of horticulture

When I started this blog I did not intend to write about garden plants but hey, a morning in the garden in the beautiful sunshine made me change my mind. Two quite different plants did it for quite different reasons.

The first is I think Symphytum grandiflorum (above and right), I am not absolutely sure, and is valuable for a number of reasons. It grows to about 25cm and is great ground cover for a sunny position even suppressing the dreaded Ground Elder (Aegopodium podagraria) which in my experience makes it unique. Equally of course that means it is invasive but in a very civilized way and can easily be pulled up in large patches as it is very shallow-rooted. It's greatest value is however for insects, it appears to produce plenty of nectar and/or pollen and is always covered with six-legged beasts especially bees. Even better, it starts flowering in February and thus provides an important food source for early emerging insect species and it is still going strong and will probably not finish flowering for another few weeks. Some might dismiss it as just another Comfrey but although it is not an elegant plant I think it is a valuable addition to the garden.

The second plant is for unashamedly decorative interest, Ribes speciosum, the Fuchsia-flowered Currant or Californian Currant. The first plant I ever saw of this was trained espalier-style, 5m up a south-facing wall to show off its flowers that hang down below the branches to full effect and it was quite spectacular. My own plant is more or less free-standing and is about 3m high. The flowers open virtually together and the contrast between the bright red flowers and the vibrant green of the newly-emerged leaves is something to behold. Individually, the flowers are not large (about 3cm inclusing the exserted stamens) but en masse they have quite an impact. Apparently, it is only just hardy but has survived in my north-facing garden for years. It is difficult (for me impossible) to root from cuttings unlike most Ribes species and that may explain why I have not seen it too often either in gardens or for sale. The final merit of this plant is that in the summer it produces small red- bristled gooseberries, that until this moment I have never thought of tasting, I shall try this year. I think if I was restricted to having a single shrub in the garden it would be this.

Two posts in 2 days!!!! I might get the hang of this blog thing eventually

Tuesday, 21 April 2009

Early Spider Orchid

Not been out much locally recently but a trip (or perhaps as so many people do it, a pilgrimage!) to Dorset in the past few days gave the opportunity for a walk along the Purbeck cliffs to see Early Spider Orchid (Ophrys sphegodes) and thus start to catch up with the Greeks. This species is at the northern limit of its European distribution and is confined to the warm chalk and limestone of southern England in Kent, Sussex and Dorset. Most populations are found very close to the sea although one of the largest colonies at Woodingdean in Sussex is about two miles inland. Generally it is a plant of very short turf having very little capacity to compete with strong-growing grasses.

In Dorset it is typically a plant of the cliff edge and quarries that abound in the area as the rather cheesy picture on the left illustrates. This year we did find large numbers growing in rough pasture a bit farther back (10metres) from the cliffs that had been winter-grazed. Plants are often quite small the second picture shows an extreme example, the daisy flower is of Bellis perennis about 7cm high.

In recent years O.sphegodes has shown an amazing propensity to colonise suitable fresh habitat at Samphire Hoe, near Dover (see Kingsdowner blog and picture to the left). The Hoe was created from spoil from the Channel Tunnel diggings and in the intervening 12 years since it was completed the number of O.sphegodes plants have increased from less than 100 to over 10,000 making it one of the largest colonies in the country. In Dorset I suspect that if there was more suitably timed grazing there would be many more plants.

One thing is certain however that this species is one of the gems of the British flora especially flowering so early in the year.


Monday, 13 April 2009

Going green


My favourite view in Banstead is from the top of Park Downs looking south over Banstead Woods, with a valley in between you get a wonderful view of the trees clothing the opposite side of the valley.

The photo behind the title of this blog is of part of that view, taken in late autumn. This afternoon, the sun was shining across the trees and I couldn't resist. The green shoots of spring at least on the trees are just beginning to unfurl and the colours (greens!!) are quite spectacular.

The picture above is roughly the same view as the title, looking towards the north-western end of the woods. This was once home to a large country house pulled down early in the 20th century and the woodland surrounding the house was planted with a large number of non-native species especially conifers and these provide the darker greens.

The picture below was taken looking toward the north-eastern end of the Woods where there are fewer planted species. In the foreground birch and Hawthorn on Park Downs are just beginning to show leaf. The three bright green trees to the left centre of the picture are I think Sycamore in flower (I couldn't be bothered to check). The other main species in the wood, Oak and Beech are yet to show green.

I will return to this view and the Woods through the spring.

Thursday, 9 April 2009

Asplenium anyone?

Chalk downland in the south-east of England is probably not the first place that you would go looking for ferns in the UK especially if you were searching for the smaller species of the Asplenium genus. However there is one place on Banstead Downs where a veritable cornucopia (its all relative) of such plants grow although it must be said they do not lend themselves to close inspection. Banstead Downs is split by the Epsom Downs railway line and halfway across the Downs is a brick bridge known as the Sheep Bridge. Walking across it and you would only notice the odd piece of graffiti and pass on. Look over the parapet and you might be surprised to see that the mortar of the brickwork supports a considerable level of plant life ranging in size from birch seedlings through Silene species to a number of small ferns including at least five species of Asplenium.

In fern terms, walls in the south-east might be expected to be home to Wall Rue (A.ruta-maria, top left) which is very common and Black Spleenwort (A.nigrum) that in my experience seems to have a special affinity for railway bridges but in addition to these, both Maidenhair Spleenwort (A.trichomanes, middle) and Rustyback (A.ceterach or Ceterach officinarum, bottom left) are present.

Now I realise that those of you who live in the west and north of the British Isles are thinking along the lines; "so what, the latter two occur on every wall and rock crevice available here". Well, here in the SE the situation is slightly different, A.trichomanes is much less common than in the more rain-endowed areas of the country and as for A.ceterach , a quick look at the NBN Gateway distibution map shows it has a marked southerly/westerly distibution in the British Isles and is absent from many 10km tetrads in the SE and even in those where it does occur it is by no means common.

One interesting point is that there are many more plants on the hotter south-facing outer wall of the bridge than on the north-facing side. Virtually nothing grow on the inside walls.

That's four Asplenium species, the fifth doesn't quite fit the "small" description, there are a few plants of Hart's-tongue fern (A.scolopendrium or Phyllitis scolopendrium). In addition there are a few other ferns that are out of reach that I have never identified.

Worth having a look but remember don't lean over the parapet too far!!!

Monday, 30 March 2009

Violets are Blue?????

Like Daffodils, see previous entry, Violets (Viola species) presage spring but unlike Daffodils I cannot get enough of them. Around Banstead it has been a good year for the various species but special mention must go to Park Downs where there is a spectacular display of Hairy Violet (V.hirta) this year.

It is there every year but the numbers and effect vary depending on the level of rabbit grazing. This year is a great year because of the large number of rabbits that have managed to reduce part of the Downs to a sward that a bowling green groundsman would be proud of (although not flat if you know what I mean!). The plants remain firmly tucked into the other vegetation until it seems, the very last minute and then they throw up their flower stems, the rabbits do not seem to relish the flowers at all and so the overall effect from a distance is of a blue haze across the side of the south-facing slope, the picture at the bottom does not do them justice.

Normally Hairy Violet tends to have flowers that are closer to blue than purple (?violet?) of other species, a fact immediately observable in the field but not so easy to see from photos because getting typical colours of these shades is heavily dependent of the ambient light. Unlike Sweet Violet (V.odorata) Hairy Violet is rarely found in white although paler blue versions are freely available.

Tuesday, 24 March 2009

Devil daffodils

I must confess that Daffodils make the hairs on the back of my neck stand up for very different reasons.

In Britain they are evocative of Spring, when they come into full flower it usually coincides with those wonderful first sunny but cold days of early spring such as we have had for the past few days in Surrey. Unfortunately there are no native daffodils (Narcissus pseudo-narcissus) that I know of in this area and so locally the experience has to be gained from those rather more gaudy cultivars and therein lies the rub.

I like some Daffodils (or more generally Narcissus species) in their right place, to me that means either in their natural habitat in which case we are talking about species which are predominantly southern European, or in gardens where cultivars are more commonly grown than species.

Unfortunately, we seem to suffer (in my opinion) from a surfeit of Daffodils elsewhere in places they do not belong!! Firstly, the mass planting on roadside verges, roundabouts or any other convenient grassy area mostly sponsored by local authorities. Rather than use delicate Narcissus species including the native species, the vast majority of plantings involve obnoxious cultivars that have as much subtlety as a brick wall. Why???

Ridiculous - discarded Daffodils on Park Downs, Banstead

Secondly and more importantly, Daffodils present visible evidence of the laziness and anti-social behaviour of "fly tippers" who regard plants as disposable and throw them out with gay abandon, usually apparently from cars. The roads across the downland in Banstead have many clumps of various Narcissi that on the whole only occur within about 5 metres of the carriageway, i.e. throwing distance. AND, it is not just Daffodils, other rubbish includes forms of Crocus, flowering Hyacinth and other sundry bulbous species.

Sublime - Narcissus serotinus growing in southern Spain. Chosen perversely to represent the genus because it is an autumn-flowering species!!

Now some people respond to my rants by suggesting that they brighten up the countryside as if the countryside is there purely for their entertainment and amusement. I grant you that apart from offending my eye around here they do little damage to habitat, at least so far. To me however it is what they represent in the form of the total lack of respect that people have for the countryside that is so galling.

Finally however the other night the television news carried a snippet about some poor guy in Gloucestershire who spends his time digging up alien Daffodils because of fears that they may pollinate populations of the native species, I can't help feeling he is fighting a losing battle.

From conversations with many over the years, I realise that I am in a minority of one so I hope I haven't offended anyone with these views!!!

Friday, 13 March 2009

New links

You may have noticed I have added a few new links recently that have botanical content.

Kingsdowner presents an excellent commentary of all types of wildlife and habitat in Kent and has some great photography too. A constant reminder of the reasons to keep on going back to Kent.

Of particular interest to me are the two Greek ones covering orchids and other botanical interest. They are reminders that spring starts early in the Mediterranean and that I would rather be out there walking in the sun than here writing blogs! They also illustrate the spectacular richness of the Greek flora, for example, Crete, an island only about 160 miles long and forty miles wide has more native plant species than the British Isles and the region around Mt Olympus in the north of the mainland has even more. If only all those summer tourists knew what they were missing! Photograph of Cyclamen cretica for no other reason than I like it!



They also set me thinking that since I found them by a very roundabout way and I do not read or speak a word of Greek (although I know all the letters!!) there may be other foreign language (especially European) botanical blogs out there. If I find any I will probably have to treat them likes comics, look at the pictures and not read the words but if they are anything like the two Greek examples already found they will be well worth it.

Last but certainly not least, I have just added a new blog, Plants of Skye, Raasay and the Small Isles, admittedly it covers an area a long way from south-east England and so I am unlikely to get there very often but it is the genuine article, a botany blog written by a botanist.

Defoliation begins!

Haven't had much to write about recently but a walk with the dog today changed that!

South of Banstead is mostly open space with chalk downland (Chipstead Downs), ancient mixed woodland (Banstead Woods) and a large area of arable farmland stretching to Kingswood. My stroll today covered a little bit of each; in the woods the Bluebell leaves (Endymion non-scriptus) are coming on apace; on the downs the violets (Viola species) are just beginning to flower and rabbits permitting, there will be a spectacular display of Cowslips (Primula veris) in a few weeks time. All was looking great.

Then towards the end of my walk as I came out onto a footpath along the side of a field, there it was - a very large tractor with two even larger booms to either side spraying the field right up to the very edge. Last year the field carried a cereal crop and herbicide spraying was so successful that just before harvest the only weeds in the crop were a few distorted Burdock and sundry small patches of a few other stunted species, highly efficient farming! Over the winter the spilled wheat seeds have sprouted and I assume the spraying today was of herbicide to kill all plants prior to ploughing or direct drilling for a non-cereal crop.

Ten years ago the area carried a good population of breeding "farmland" birds including Yellowhammers, Linnets etc, even Reed Buntings. Now, today there are few although the past two winters have seen good sized flocks of winter finches especially Chaffinches and Bramblings.

Modern agriculture has created mini-deserts devoid of wildflowers and their associated insect fauna hence the birds are lost. In this area the cereal is alternated with cash crops such as beans or Flax and there the crop is even sprayed before harvest so killing all those plant species that survived that season because of the lack of selective herbicide use.

I realise farms are businesses but I can't help feeling we have gone too far. I know there are plenty of farms out there that seek to enhance wildlife habitat but there are far too many who just ignore it. Hopefully things might change before it is too late but don't hold your breath.

Monday, 2 March 2009

Home extension

The title is not an excuse for not posting for a while (hadn't got anything to say!) but more a description of the local badger activity over the past week or so.

About five years ago, badgers established a new sett close to houses in Banstead, it was a modest three-entrance abode set amongst scrub that involved digging into the chalk and the associated earthworks were quite something. For a couple of years nothing changed and then an extra entrance was provided. Evidence of their everyday activities was obvious with many tracks strewn with bedding material leading to the sett. Now and again when I walked the dog in the morning I would be lucky enough to get a fleeting glance of one of the occupants.

During the recent snow there was not much activity and they didn't start changing bedding for almost a week after it had cleared, presumably when the dead grass and moss that they use had dried out. Then last week they got the builders in, so far two new entrances have been created and two more have been started. Amazingly one of the new ones (see photo) is right in the middle of a path used regularly by dog walkers but they (the badgers) have not let that deter them they are still putting the finishing touches to it and walkers will have to detour. Presumably the family group is growing and they need extra space, quite a lot judging by the chalk they are shifting.