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I have some seed I can't find sowing instructions on because the traditional way to propagate it is through cuttings. But I have seed and I wondered if anybody nows how to sow it. I looked on Tom Clothiers site, and also JLHudson, but nothing was listed for this plant.
common name: Leadwort, Hardy Blue Plumbago
Latin Name: Ceratostigma plumbaginoides
Synonym: Plumbago larpentiae
Note: It is NOT Cape Leadwort. Plumbago capensis Blue - Cape Leadwort
Pre-chill seeds 10-12 wks. before planting out.
Early spring, when soil is cool and a light frost is still possible.
Depth Just cover.
Time 30-90 days
Rquirements Place seeds together with moistened sand in a plastic bag, seal lightly, and refrigerate for 4-6 wks. Provide 60 thereafter.
Planting seedlings outdoors
Time early spring or early autumn.
There you go Suzy :) From "From Seed To Bloom" by Eileen Powell, I needed to look this one up too glad I did didn't know they needed prechilled!
I've never grown them before but it says to chill the seeds for 10-12 wks. and I have so many other seeds to sow I'm just keeping the packet in the fridge until I get ready to sow it. The pot in the fridge sounds good but no room in my fridge or you could use the baggie method, I'm trying that a little more this year. :)