Northants News 17.3 Winter 2006

J. White Nurseries                  Steve Purr

This year’s holiday took the Purr family to Honiton in Devon. A quick scan of the internet drew a blank for nearby cactus nurseries. On a midweek trip through the centre of Honiton, we drove past the street market and my eagle eye spotted a tray of Echeverias on the floor between two stalls. I quickly found a parking space and backtracked to the stall.

Much to my surprise the entire stall was devoted to selling Echeverias. Even more surprised was the stall-holder, Jeremy White, because I actually knew the names of the plants he was selling. Three quarters of an hour later, and twenty pounds poorer, I had arranged to visit his nursery next morning.

Left: Jeremy welcomes Steve to the nursery

Jeremy gave me a tour of his nursery which consisted of two 18’ x 60’ poly-tunnels, two 30’ glasshouses and a potting shed. The plants were mostly Echeverias and were the healthiest and largest plants I had ever seen. All the Echeverias were staged outside for the summer but were housed in the poly-tunnels in winter. No insecticides were used, the only pest control was nematodes and this seems to keep the entire collection vine-weevil free and not a single mealy-bug in sight.

 

Below: A well grown sales plant of Echeveria agavoides 'Red Edge'

Colurful Echeverias

Above: Colourful Echeverias everywhere

Echeveria agavoides 'Red Edge'

As you will see in the photos, Jeremy has grown thousands of truly wonderful plants. His nursery is not yet fully established and there is no mail-order as yet but visitors are made welcome by appointment, (01404 841250).

I learned a lot from this two hour visit and intend to change my growing methods for next season. I wish to thank Jeremy for his hospitality and wish him well in his venture.

Steve

 

The Garden of Wales              Ian Priestley

OK, so you’ve all heard of the Eden Project, near Truro in Cornwall and possibly some of you may have visited this but did you know that it has a Welsh equivalent – The National Botanic Garden of Wales, positioned west of Swansea, just off the M4?

Julie, Elanor and I were holidaying in this area of Wales, early last year and thought it might well be worth a visit. The actual setting is very grand; the world’s largest single span greenhouse, 110m in length by 60 m width, is situated on a tall hilltop, overlooking the former Regency garden and parklands of Middleton Hall. The glass is above ground whilst the interior landscape of 3500 sq m is mostly either at or below ground level.

Normally visitors would walk about 400-600 metres up the hill to the greenhouse, but motorized transport is also available for those who cannot actually make this. There is also a tour, again by minibus, which takes in all of the site and which we also highly recommend, particularly on a nice sunny day, as we thought both views and the commentary about the site and the plans for the future were excellent.

Inside, the interior, like the Eden project is divided into different zones. Julie and I concentrated our sights on the S African, N American and Canary Isles plants. Some nice specimens were on display, a very striking Aloe leucadendron “Safari Sunset” certainly caught my eye, as did some of the Dudleyas, D. hassei, D. lanceolata, D. anthonyi and D. pulverulenta which were bedded. On the down side, I also noticed a few mealies on some of these, although in fairness this had been recognised, and they were preparing to spray, as we left.

In summary, we intend to visit again in a few years time to see what progress has been made. To any new visitor who may be interested in plants generally, we recommend a visit if in the area. True, there is not too great a range of cacti and succulents, but it certainly fills a day.

Ian

Freshly gathered yarns from the world of seeds                          Doug Rowland

Doug has more snips from his life as a seed supplier...

21. When raising Euphorbia obesa from seeds you are presented with something like a stronger stem of watercress after germination. Then you think to yourself, that these cannot be Euphorbia obesa seedlings. But they are. Between the cotyledons a small green globe will begin to grow and as it does so then the stem shrinks down gradually to soil level. And there you have seedling E. obesa plants in the fullness of time.

22. Most of the newer Lithops cultivars are more difficult to grow than the species due to the reduced amounts of chlorophyll in the plants. This is why you do not see seeds or plants regularly available in nurseries. These plants are susceptible to strong sunlight, but if you manage to raise a few plants and keep them, then you are a good grower. Another Lithops that is always difficult to grow and keep is L. comptonii var. weberi. Try it from seeds sometime.

23. Seeds from dry berries such as Ferocactus are comparatively easy to collect when ripe and germinate and grow on. However, seeds from wet fruits such as Mammillaria are more difficult to raise. These seeds should be washed in clean water and dried at room temperature. But unfortunately some seeds are not, and when sown, the first watering will often reconstitute the jelly on the seeds and cause them to suffer fungal disease which can be rife in the warm moist conditions of a propagator box. So the best you can do is to water using a copper fungicide solution which will help resolve the situation.

24. Raising ferns from spores is quite a challenge, but quite possible for the keen types following the rules of play. The pots, soil and plant labels should all be sterilised in boiling water and allowed to cool. Assemble soil, pots and labels and lightly sprinkle the dust like spores on the surface of the soil in half filled 4” or 5” pots. Cover down with clear plastic kitchen Clingfilm and secure with several elastic bands. Place on a warm and shady shelf and allow an undetermined time to pass. Water from the bottom with cold boiled water if and when necessary. First of all a green velvety covering will appear on the soil surface which then grows on to be the first stage of development. When the male and female growths have pollinated, then small ferns will begin to appear. Leave sealed until fern fronds fill the top part of the pot and then remove the seal and allow the young ferns to grow on. Pot up when large enough to handle. New Zealand Tree Ferns require a cool and shady environment when young. In habitat the trees eventually after many years break through the forest canopy into full sun.

25. When sowing and then labelling seeds I do not ever give them numbers or catalogue or code numbers. I just cut up labels quite small and write the full botanical name of the item on it. After around two years of growth it is time to see what you have got. But if you have mislaid your key listing of code numbers to species or lost your notebook like I did once you are then presented with some difficulty with putting the correct names on your plants. Labelling Lithops seedlings from colour plates in a book is just about the most frustrating pastime that I know.

26. In older textbooks I have seen large pans of detached Echeveria leaves rooting. This looks quite good in the picture but some species do take rather a long time to form a suitably sized rosette to pot on. But if your leaf is broken and not detached at the stem joint then it will not root anyway.

27. The genus Othonna presents quite a challenge to raise from seeds. For a start, most of these plants are winter or short day growers. These plants from South African winter rainfall habitats are best sown in autumn. The little capsules which come from the centre of the flowers, and are shaped like little bombs, having a smooth nose area and a hairy windborne tail. They are difficult to count and pack, mostly wanting to go outside the pack, rather than in, and a pair of stamp tweezers are required for this itchy job. To improve the chances of germination it is possible to cut into the nose area with a scalpel and remove the single seed. Sowing a complete capsule may work, but loose coverings are susceptible to fungus attack or rotting off of seedlings in a warm moist atmosphere of a propagator unit.

28. It is best to sow seeds in individual 2” pots, where they can be labelled with species name and be contained. At one time I used to sow seeds in lines across a half seed tray. However, one day I accidentally flooded the box and seeds floated off in all directions. End of line sowing strategy.

29. Letter from a frustrated enthusiast in a foreign country. Dear Doug, Thank you for sending the seeds which have been detained locally by the Customs Department. They have asked me to tell them the full Latin names of all the cactus seeds that are included in the large pack of mixed seeds that you sent me in a jumbo pack. Cor Mate!

30. When applying for a Phytosanitary Certificate to export seeds to some countries, the Family, Genus, Species, Source and Quantity of seeds in the pack has to be declared and listed. There are problems then with quantities of seeds such as most Crassulaceae and some Mesembs, whose seeds are as fine as pepper grains. All we can say is that these seeds are dust-like and uncountable, and a small quantity is enclosed for inspection.

Doug

More from Doug’s world of seeds in the next issue.

 

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