Oak Summit Nursery · Southern Manitoba

Cold hardy plants and seeds for northern gardens.

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Pembina plums at our nursery · August 2026Pembina plums at our nursery · August 2026

This week at Oak Summit

Plum seeds are back in stock

Grow your own plum trees from seed. Choose wild plums, seeds from Pembina, or a collection of small, sweet seedling plums.

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Cold hardy cherries for northern gardens.

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Popular annual and perennial herbs.

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Hardy berries and fruiting shrubs for northern gardens.

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Cold hardy apples, cherries, plums, and pears.

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From the nursery

Field Notes

Photos and observations from propagation, seed collection, and the nursery.

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sweet cherry grafts, at the end of the season. we'll have frost soon, all of... - Plum And Cherry Hybrids, September...Sep 12, 2026 · Plum & Cherry Hybridssweet cherry grafts, at the end of the season. we'll have frost soon, all of this year's growth is hardening off. and next month all of these leaves will drop. some of these grafts put on three ft, a result from topping the pin cherry trees in late april while they were dormant. I'll collect scions in november since we really can't be sure the sweet cherry will survive the winter, so maybe 1/3 or 1/2 of the growth can come off - it will help the branches thicken and create laterals next year. I'm thinking about grafting onto pin cherry seedlings.Read field note +6
this summer I was lucky enough to collect cuttings from some rare lilacs, you... - Propagation By Cuttings, September...Sep 11, 2026 · Propagation By Cuttingsthis summer I was lucky enough to collect cuttings from some rare lilacs, you can see the small new leaves in this one which are new growth, a good sign after rooting softwood that it's healthy and building some size before going dormant next month. the one in the photo is a variegated lilac, possibly a rare variety named dappled dawn. as part of a conservation effort the accessions are being recorded and follow up photos next season of the flowers should help with a positive ID. lilacs can be propagated through cuttings they're just slow to root, the slowest of any plants I've tried at 10 weeks under mist with bottom heat for some cultivars. for the ones large enough to send out, I'll make some of the new lilac collection available in our fall sale starting this weekend in mid sept. I'm busy taking photos and counting all the plants this week to get ready.Read field note
cleaning wild plums this week. I keep some of them for jam but often they're... - Plum And Cherry Hybrids, September...Sep 10, 2026 · Plum & Cherry Hybridscleaning wild plums this week. I keep some of them for jam but often they're picked overripe and from the ground, and the best I can do is eat some and then keep all of the seed. the funny thing is that most of the fruit I collect for the nursery is from locations where it was just going to fall and become compost or food for wildlife, so I think giving every plum seed the opportunity to grow into a tree is a good result. in the case of these hard to find canada wild plums it's a conservation effort to distribute the genetics, their value in a home orchard or in the landscape is quite high to pollinate other plums, and as a great native tree overall. a net positive to eventually feed more wildlife everywhere they're planted for sure. these plums will be to help stock the nursery next spring and keep our seed shop going through the winter. if you want to grow plums. you can plant the seeds in the fall or start them in the fridge in some damp peat moss through the winter and that helps break their dormancy so that the seeds will germinate in the spring.Read field note +1
mayapple (likely Podophyllum hexandrum) an interesting himalayan plant that... - Seeds And Stratification, September...Sep 8, 2026 · Seeds & Stratificationmayapple (likely Podophyllum hexandrum) an interesting himalayan plant that grows these soft pods. it's an herbaceous perennial that seems to defy it's zone 5 rating, growing well in zone 3 southern MB in a sheltered location, likely just because of enough snow cover but a well established patch that's seen plenty of our winters, which often don't have much snow cover when the cold weather hits. So this grows a bit like other forest perennials, like wild sarsaparilla it's a low broad leafy plant. the outer part of the pods are supposed to edible, but I didn't try these ones while I was cleaning the seed. the pods break open to expose pea sized seeds in a very pulpy clingy interior. I'll glow a set in the nursery next spring, and should have enough to share some on our seed shop.Read field note +2

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