Members of the Synthyris genus are low growing hardy perennials that reach from 6 to 30 cm in height; this makes them great for growing in rock gardens.
They often bloom twice a year, always in early spring, and sometimes in autumn.
When they bloom Synthyris carry spikes of small white, purple, blue, or pink flowers.
Synthyris borealis - Kitten Tails by DenaliNPS.
Synthyris pinnatifida by Cutleaf Kitten tails by Fool-on-the-hill.
It is best to grow Synthyris from purchased plants or from divided plants that some one has been kind enough to give you. These plants should be spaced at about 10 to 15 cm apart in the rock garden.
The soil that Synthyris grow in should be organic, rich, and acidic; ideally it should also be gritty.
Synthyris plants such as Snow Queen and Kittentails love a moist soil and do not like sunny conditions, so grow in a shaded or at least partially shaded area of the garden.
Synthyris likes to grow in a moist to wet soil so ensure that they are kept well watered at all times. If you require more plants then propagate Synthyris by division in the spring.
I hope that you enjoyed this guide on how to grow Synthyris plants. Updated September 2020.