Friday, 25 October 2013

Salvia Garden in Les Arcs

The title of this blog is 'Salvia Garden', but although there are several Salvias growing in this garden, it has much more to offer.

our group with the Szechuan pepper tree on the right foreground

Mr. and  Mrs. Patry, started 15 years ago with the aim of creating a garden with minimal water requirements.  On the lower terraces of their 4000m2 plot, they planted olive trees.  Initially they bought a lot of plants from Pepiniere Filippi in Meze,  at that time, one of the few garden centres that specialised in plants that could stand the summer drought.

Their son, Guillaume, led us round the garden.  He was very knowledgeable and pleasant, never tiring of all the questions members asked him.

He mentioned that they plant in the middle of September.  As the weather is still nice, the soil is warm, new roots sprout easily.  After planting he waters the plants once a week, till their roots have settled and grown.  By summer the plants are well established and do not need watering.  To prevent water loss, he uses wood chips as a mulch.  As he has his own garden maintenance company and is a tree surgeon, he has a ready supply of wood chips.

Some of the Salvias growing in this garden are tender.  I've given the lowest temperatures they can take as a guideline, taken from Christine Yeo's books on Salvias.  Christine Yeo is a National Collection Holder of Salvias (NCCPG) in the U.K.   In this particular garden they seem to cope with much lower temperatures.  Often the tender Salvias die down during the winter to come up again in spring.

Salvia apiana - whole plant covered with white hairs, with pale lilac flowers, up to -3C.

Salvia azurea - up to -3C.

Salvia 'Blue Spires', sometimes called 'Mystic Blue Spires', dies down in winter, comes up in spring:

Salvia canariensis - growing near the house, up to -5/-6C:

Salvia darcyi, magnificent large red flowers -8C:

Salvia chamaedryoides (blue), up to -6C, together with Salvia greggi, up to -6C, many different varieties, discussed in last month blog on Salvias:

Blue flowering Salvia chamaedryoides with red, pink and salmon flowering Salvia greggii next to it

Salvia leucantha - flowers in autumn, up to -4C:

Salvia microphylla - many different varieties, various colours, discussed in last month's blog on Salvias, up to -10C.

Salvia microphylla var. neurepia has very large leaves with large red flowers:

Salvia pomifera - not in flower, very nice grey crinkly leaves, up to -10C:

Salvia uliginosa - requires regular watering - light blue flowers, dies down in winter, up to -10C:

In addition to Salvias there are many shrubs and trees, some of the lesser known ones:

Acacia karoo (long thorns)

Acca sellowiana (Feijoa)
Arbutus andrachne
Arbutus unedo - strawberry tree, native to the region, the fruits resemble strawberries, hence the name:

Buddleja alternifolia.
Ceratonia siliqua - Carob tree - the seedpod can be crushed and used as a chocolate substitute.
Pistachio vera - a male and female tree are required for it to set fruit.
Zanthoxylum simulans - Szechuan pepper tree, I tried them, spicy and acidic at the same time.

The owners introduced plants that grow naturally in the Mediterranean basin, to mention a few:
Euphorbia dendroides:

Euphorbia resinifera:

Euphorbia myrsinitis.
Euphorbia rigida - like myrsinitis but more upright:

Globularia alypum:


Ptilostemon gnaphaloides, with thistle like lilac flowers:

Santolinas, with one in particular that stood out, Santolina 'Small Ness' :

Trachelium caeruleum :

I noticed several members asking Guillaume for the name of the plant below, Beschorneria yuccoides.  This is what it looks like in flower:

The hills surrounding  Les Arcs are made of a special type of limestone called 'Tufa'.  Tufa is soft and very porous, water drains easily.  Because of this 'Tufa', Mr. & Mrs. Patry were able to introduce exotic plants that you normally only find at the coast.  In winter they protect the plants against the frost:

Agave attenuata
Agave parrya
Agave parviflora
Agave victoriae-reginae:

and Cacti.  They even created a special sanctuary, a covered area built into the rocks to house the Cacti.  As there is no natural rain water coming into this area, they are watered once a week:

Cephalocactus senilis, the grey hairy cactus, behind the Echinocactus:

Ferocactus stainesii, the 3 cacti close together, outlined in red:

Echinocactus grusonii:

At the end of our visit we were treated to a table full of Acca fruit.  Quite delicious, an unusual flavour.

A big thank you to all our photographers, without them the blog would not be the same.

Clarisse sent an email mentioning a pepiniere, Le Sceau Vert, 800 m outside Salernes on the Route d'Entrecasteaux, on the right.  They have a large selection of Salvias and very reasonably prized.  Tel:  0621098825.

Photos:  Elisabeth Boutevin, Hazel Francis, Gerda Nagtegaal and Isabel Pardoe.

Sunday, 20 October 2013

Up to date pruning techniques

During Sue's latest trip to the U.K., she went to a lecture on pruning at one of the nearby nurseries.  She compiled what she felt was useful to our members and added some of her own comments.


9th October 2013


Why prune? * improve fruit and flower production
remove dead or damaged branches
plant too large for location
create topiary

Tools: secateurs (anvil = l stationary + 1 cutting blade)
Parrot clippers
Wetstone to sharpen blades

Anvil secateur

Parrot clippers

Felco Wetstone

Sharpening tools: sharpen bevelled edge only (push downwards and away from body).
Check edge sharpness by holding blade up to good light (if flat it is sharp).

When to prune: immediately after flowering so as not to prune next year’s flowering shoots
OR in spring after frosts i.e. not in autumn.
Prune on a cloudy day

After pruning: feed with compost and water well

DO  NOT tidy up perennials in autumn (do this in spring)
DO  NOT cut off Agapanthus flowers

Rose (rambler): Identify = lots of stems from base
Example = Rosa filipes 'Kiftsgate', 'Kew Rambler', Rosa banksaie (my double white Banksia had no flowers in spring 2013 – due to long cold spring).

Rosa filipes 'Kiftgate'

Pruning = remove dead and old wood after flowering.

Rose (climbing): Identify = sprouts from single stem
Example = Rosa Madame Alfred Carriere, Cecile Brunner and Iceberg.

Madame Alfred Carriere

Feed in spring
Train horizontal to encourage vertical growth
Prune from October - Spring.

Rose (floribunda): cut to ground in late winter to 3rd outward facing bud from ground

Rose (shrub): aim for open goblet shape

Cut dead/damaged/diseased/weak branches (to reduce blackspot).

Lavender: prune when still in flower to avoid cutting next year’s flowers (as per Norfolk lavender farmer)
(needs 8 hours of sun per day and light soil)

Buddlea, Lavatera: prune in autumn by one-third all over to reduce wind-rock.

Vines: spring spur prune
Summer remove leaves around grapes.
Remove one-third of all bunches of grapes.

Dogwoods: Cornus sanguinea 'Winter Beauty' (light prune)

Cornus alba (can be hard-pruned by1/3rd each year)

Camelias: prune immediately after flowering in the Spring, flowers on new growth (can prune hard).  Flower buds from in the Summer, so pruning later will remove flowers for next year.    Also, extremely important that they are given plenty of water (in our climate) as flower buds are developing.

Hydrangeas: remove flower heads in late spring

Trachyspernum jasminoides :

 prune in late summer.



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