My mother and I are starting a new project trying to cultivate native trees and other plant species such as herbs, medicines and edibles that the nurseries don’t seem to want to do. There can’t be enough big money in it I suppose, and commercial nurseries operate on a very low cost per plant. In order to grow trees of species with specific varieties in specific locales, I’m practicing and experimenting with growing indigenous trees from seed. My mom is a native tree, indigenous vegetation dovotee and has won two medals for her environmental work with the Renosterveld and the Table Mountain Forest at Newlands. I hope to follow in her footsteps planting native plants, not in reserves but in places which benefit people more directly on a local level. Here are some of the forest trees I'm growing such as: Euclea racemosa. You can see some of my successes growing African fruit trees with Harpephyllum caffrum, African wild plum (Ngwenyabomvu) and Carissa (Num num or Amatungulu) under the heading organic vegetables then perennial foodplants, in the navigation bar or in the sitemap.
I’ve harvested the seed of other native trees round about, in a general way around Cape Town. Thus I call it wild seed, because you can’t buy it in nurseries. It has undergone natural selection processes for millenia and isn’t going to give rise to a ‘cultivar’, but the mother plant isn’t necessarily growing ‘in the wild’.
Once I know the growing requirements of these native trees and other species I will be able to extend that knowledge to the diversity within the same species. There aren't thousands of pages of instructions, as you'd find for growing fruit for example. I’ve applied for a license to harvest forest seeds, but I can’t go to the forest yet. To be sustainable, I harvest just a tiny bit, about a tablespoon of the small seeds when there are masses of seeds on the tree, and up to about six only of the very largest seeds, or if they are lying in masses on the street perhaps a dozen. The project may fail with these tiny numbers, because I notice a lot of the big fruit look very insect gnawed (do they gnaw) stung and sucked.
So after the harvesting trips, I recycled some old six packs I’ve used as seed trays again and again. I don’t like the polystyrene ones with the very small compartments, because it may be traumatic pulling the plants out of these, and the native trees are probably very slow growing. To try and cut down the plant diseases which wilt off young plants, I soaked the trays in a bleach solution, and used pure vermicompost which contains a natural fungicide.
I watered the seed trays thoroughly before planting so as not to disturb the planted seeds for as long as possible. When I water again I will run the point of the only half filled watering can along the ridge in the middle of the six pack, it help stabilize the water flow so that the seeds don’t get washed out of the medium.
I couldn’t work out how to label the seeds till I cunningly thought of making recycled labels by cutting up some of the large plastic 1 liter yoghurt containers piling up in my kitchen. It worked so perfectly. The white plastic took the indelible black felt tip pen I used very well and the labels are perfectly legible.
I use milk bags for many purposes but chiefly in the nursery as it means they don’t have to be so thoroughly washed. These plant/milk bags contain the collected seeds with a little slip of paper on which I wrote my mother’s identifications of the plant, and then transferred this to the plastic plant labels for the seed trays. My mother used to propagate native trees for Parks and Forests a few years back and she knows them quite well.
I planted the seeds of some native trees and indigenous fruit trees using a mix of the lore I learned from Karin Parkin and my mother. My mother recommends planting the native tree seeds while still fresh, even green, because dried indigenous seeds are more difficult to germinate, they get very hard and resistant in order to survive our dry summers and lie there waiting for the right conditions. The horticulturists working with them have to sandblast and acid bath them to get them to germinate, not something I’m keen on or equipped for. Karin Parkin’s memorable talk on vegetable garden seed harvesting at the TUFCO gathering, and her advice at the permaculture workshop I visited, meant that I planted the seeds in proportion to their size, as deep as the longest dimension of the seed, and I dug little furrows for them, which places them more accurately at the right depth. Thanks Karin. Who would think an experienced gardener is so nervous about planting seeds, you gave us all confidence.
Here are the seeds all sown, labelled, watered and ready to grow. I am very excited about the outcome of this experiment, as I really believe in what I'm doing, from an ecological point of view.
home page for more green inspiration
gardening and where it all began
Gymnosporia buxifolia the perfect hedge plant with ecological benefits
Grewia occidentalist the best hedge plant and 18 reasons to grow it.
Harpephyllum caffrum the berry with the highest anti-oxidant count, and robust resilient tree.
Carissa bispinosa for fragrant flowers and nutritious fruit giving bright pink vinegars and jams !
Eudlea racemosa the beautiful dune forest tree with edible dark berries.
Dovyalis caffra for tart and tangy fruit, jams and chutneys
Please let me know if you have any questions, comments or stories to share on gardening, permaculture, regenerative agriculture, food forests, natural gardening, do nothing gardening, observations about pests and diseases, foraging, dealing with and using weeds constructively, composting and going offgrid.
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