Up for sale is one pack of 50 Bunter Astilbe Flower Seeds. These create large plumed flowers in shades or red, white, lilac, and pink. Perfect for shady areas or spots that get afternoon sun.
We offer combined shipping on all orders, no limit on the amount or type of seed packets.
Soil temperature: 65-70 degrees fahrenheit
Germination lighting: Light
Germination days: 10 days
Plant spread: 28"
Plant height: 28''
Plant type: Perennial
Maturation days: 365 days
It's best to start Atilbe in pots in a soil mixture of half coarse sand or vermiculite and half peat. We like to use a Tupperware type container with holes in the bottom and a translucent lid the help maintain moisture. You can also use 4" landscape pots that have holes in the bottom. These seeds are some of the tiniest seed we sell and are difficult to work with. Best way to handle them is to mix the packet with 1/4 cup of dry sand and use a shaker (like a spice bottle) to sow them. In the case of pots give each pot a quick shake, or if using 1020 trays you can apply the contents of one packet in the whole tray (using the shaker method). They require light to germinate so do not cover them and if you decide to direct sow them and not use the shaker method lightly dust with sand or vermiculite.
While germinating they do like their soil moist, but not soaking wet. We keep our Tupperware pot or landscape pot (with holes in the bottom) in a larger tray that always has about 1" of water in it. If you let your potting mixture dry out while Astilbe are germinating it means certain failure. We also loosely cover the pot with a translucent lid or plastic wrap to ensure the seeds don't dry out. Place your container under an artificial light source and keep it from getting too hot. We use flourescent shop lights, but you can also use LED grow lights. Don't use incandescent light bulbs, or place in direct sunlight, or you will generate too much heat.
These are slow to germinate, and once germinated grow slowly, so patience is required if you want to grow these. Do not expect them to germinate and create full size Astilbe in a few days, and like most perennials they will not flower until their second year.
Once they germinate, and are about 1/4" tall, you can remove the plastic wrap. You can also then add 1/4 strength liquid fertilizer like Miracle Grow to their water in the bottom tray (water from the bottom). When they are about 2" tall, and in the spring after your last frost, you can transplant them into your garden. Once mature they are very durable but in hotter climates we recommend you plant them in full shade or at least where they get afternoon shade.
If new to germinating Astible we suggest you visit our blog post on starting Succulents and following this method: