News

Grafting time

Grafting this year with smaller rootstocks which isn’t as flexible, last year I had many that were 20-25mm diameter in the 100mm above the root line. However the first 100 or so are in the hot-pipe bench and it’s up to temperature so fingers crossed.

This year I managed to get a lot of scion wood from Upton Wold courtesy of My Ian Bond, hopefully this will add to the list of Juglans with cultivars of Cinerea, Ailantifolia, Regia and Nigra.

Of particular interest are two late Regia pollinators, Cyril from the Netherlands which is very late and Corne de Perigord from France which we think will be important for us in the future to ensure pollination of late flowerers like Fernor.

The other we’d like to graft is Ronde de Montignac, next month I hope.

Common cultivars – our view so far

One of the biggest blocks to people planting walnuts is the lack of reliable descriptions of cultivars commonly available in the UK. Almost all descriptions of individual cultivars are copies of copies often, of a translation from another language.

I’ve put together a summery of some of these common cultivars with the common descriptions (amalgamated from various sources) and then a brief summary from our experiences. Note that we are in a very cold part of the UK that is fairly dry and is prone to spring frosts, we rarely escape April frosts and mid May frosts are not unknown.

This is not an exhaustive list, we have another 40 cultivars not on it and there are hundreds more worldwide, these are the ones often seen for sale in the UK. Our trees are very young but we see orchards all over the UK so have some experience from other micro-climates.

Download list

Pecans & Hickory Nuts & some images

I get asked a great deal about growing Carya cultivars for nuts in the UK, Pecans mostly but also Hickories and Hicans.

We’re growing them here and others are doing the same but I understand that everyone wants to know if they will fruit regularily here. The answer I give is yes they should (ours are a few years away) and I know of a few people already getting nuts but there is no guarantee that they will grow and fruit everywhere in the UK, we have some extremes of climate.

We grow and supply trees grafted by Ton Friesen in Nunspeet, Netherlands and they fruit successfully for him when they get to 8-10 years on average, these are all grafted named cultivars, below are some picture of the nuts on his trees this October. His climate is very similar to the South Midlands in terms of temperature, although he’s often a little wetter than us surprisingly.

I would say good deep soil with decent drainage (all walnuts hate wet feet), protection in the first few years. All Carya will also spend a few years putting down deep taproots before really growing upwards but once happy will grow a meter a more a year.

The Pecans are all Northern or Ultra Northern cultivars and all the Carya he grafts are on Northern pecan rootstocks grown specially for him.

Image 1 & 2 are Hicans, the next two Pecans.

Hican Burton
Hican NT92

The Agroforestry Show

A great day out at the The Agroforestry Show last Thursday.
It took place at Helen Browing’s Eastbrook Farm in Wiltshire and despite being seriously hot was very well attended.
Lots to see in the different plots and speakers to listen to and thank you to everyone I chatted to before and after our “Future Nut Production in the UK” event, a similar forum to the one we did at the ORFC in January but obviously with a more Agroforestry flavour.
A lot to think about and plenty of new calls and emails to answer in the next few days and weeks I think!
(the pic is of one of our fields, I forgot to any pics on site!)

New Commercial Walnut Growing Courses

I have now scheduled two more walnut growing courses, the first is outside the AONB’s funding and the second is as before so anyone inside the Cotswold AONB will get their place FOC.

The course runs 9.00am to about 3.00-3.30pm depending on questions etc.

Both events are now live on Evenbrite.

11th September         Growing English Walnuts for Profit Tickets, Mon 11 Sep 2023 at 09:00 | Eventbrite

Places cost £110 inclusive of booking fee and VAT

 13th November         Growing English Walnuts for Profit in the Cotswold AONB Tickets, Mon 13 Nov 2023 at 09:00 | Eventbrite

Places free inside the Cotswold AONB, outside will pay a reduced fee.

June Update (19th)

We got hit hard in December with the coldest temperatures for a long time, -15C on the coldest night but quite a few days below -10, new pot grown small trees we’d planted into the orchard were hit badly and we lost about 8 rare cultivars.

Thankfully there were back-up plants for most of them and we can replant in the autumn. February was the driest we’ve ever seen, almost no rain, following by the wettest March on record, a wet start to April and then no rain for weeks.

Thankfully we got the irrigation running by May (late) and June has seen some decent rain the last 10 days, we will have lost some of the newly planted orchard as it was probably too wet but time had run out and we took a chance, replacements this winter I suspect.

On a positive note an early look at nut set seems positive but we won’t be sure until mid July. This winter was 2C colder than average and whilst spring frosts were few and far between and marginal we have noticed that male catkins finished early (wk2 June) and some cultivars like Broadview had virtually none. We have a lot of cultivars with late male pollen but clearly we’d like something later and have sought out some cultivars new to us that have very late pollen, time will tell with us I suspect. Hopefully we’ll get them next year, it’s a long term solution as they won’t produce much pollen for another 6-7 years.

The most exciting part is that many of the cultivars that have never fruited have a few this year, a chance to check they are what they claim (never certain!). It also focuses the mind on squirrel control along with some sort of extra protection for the few nuts on these new trees as well.

Finally we’ve also decided to put many of the newly grafted trees from the Netherlands into the ground instead of pots. Last summer was extreme here, virtually no rain from May to October, very hot (peaked over 40C) with an average temperature of almost 25C in July/August. Black pots act like mini ovens and even in the shade and irrigated they suffered so into the ground they have gone, and mulched with irrigation this year.

We still have some larger trees in pots (mostly Red walnuts) but the rest of the Juglans will be supplied BR when dormant.

All the Carya who really hate root disturbance are in Air-pots with drip irrigation, these pots can withstand the heat much better and all the new root is created away from the outside where it’s hottest. These trees should be available from September we hope.