How to grow Cobaea scandens from seed?
Sow the large flat seeds on edge, one inch deep and sticking vertically into the compost then cover the pots with plastic or cling film to retain moisture and place on a windowsill or into a propagator. The minimum temperature for germination is16°C or 60°F, the ideal temperature is around 21°C or 70°F. It depends on the seed. I start most seeds in seed starter, but a few like cleome, dahlia, Teddy Bear sunflowers I have found have a better germination rate in a wet paper towel. I put them in the paper towel, put that in a baggy and put it on a heat mat. Once they germinate I put them in seed starter.Sow the large flat seeds on edge, one inch deep and sticking vertically into the compost then cover the pots with plastic or cling film to retain moisture and place on a windowsill or into a propagator. The minimum temperature for germination is16°C or 60°F, the ideal temperature is around 21°C or 70°F.
Do you soak Cobaea seeds?
Prior to sowing, soak the seed for 2 hours in water. Drain then surface sow seeds on their edge onto moist, well-drained seed sowing compost. Then cover seeds to own depth with a sprinkling of compost or vermiculite and place at a temperature of 16-18C (60-64F). The best way that I have found to plant seeds directly in the ground is to get the ground wet, sprinkles the seeds on top and sprinkle a little potting soil over the top of the seeds to just barely cover them. That’s it!You can sow seeds directly in the garden after the soil has warmed in the spring or start seeds indoors 10 to 12 weeks before the last frost. Seeds need light for germination, so don’t cover them up with soil; just press them lightly into the surface.Sow cuphea seeds in moist seed starting mix and keep them warm until the seeds germinate. Most gardeners buy cuphea plants, which often are grown from rooted cuttings. Allow 12 inches (30cm) between taller varieties. Our Garden Planner can produce a personalized calendar of when to sow, plant and harvest for your area.
Should I soak coneflower seeds before planting?
Begin by cold stratifying the seeds to enhance germination – soak them for 1-2 hours, then refrigerate in a sealed bag for 8-12 weeks. When ready to plant, use a moist potting soil mix and sow the seeds at a depth of 3-6 mm in pots or directly in flower beds. Start seed indoors in pots 8 to 10 weeks before last frost; transplant out after all danger of frost has passed. Cup and saucer is very sensitive to cold; wait until the weather has warmed before transplanting. Provide a strong trellis or support for vines to climb.Starting cup and saucer vine seeds is not difficult, but it’s best to scratch them a bit with a nail file or soak them overnight in water before you plant them to encourage germination. Sow the seeds on their edge in seed trays filled with soil-based seed compost.