Posted: 22/07/2016 at 12:42
astilbes LOVE damp soil. I would reconsider your strategy .....multipurpose compost and perforated plastic bags are not the way to go
my soil is sandy loam.......enriched over the years with plenty of manures, composts, bulky raw seaweed etc., etc. so it now holds moisture well and is rich. I grow several varieties of astilbes, including the dark leaved beauty Shogun but all are where soil is richest and where I can provide some shade. My plants are large and floriferous
get dried farmyard manure, pelleted chicken manure and mix well and generously with your excavated soil. Dig a generous hole. Put manure in the bottom of the planting hole. Loosen roots and plant with mixed soil.......add fish blood and bone to your mixture. Plant so your plants are in a slight recess to create a reservoire and water really well. Repeat the watering then mulch with compost enriched with pelleted chicken manure.
Never let the area totally dry out and water generously during dry spells
planting in poor sandy soil is far from ideal but enriching it generously will help dramatically
the astilbe shown has been flowering for many weeks and now beginning to go over but it is a metre high and more wide. It has been superb. Long after the flowers have gone the foliage will look good......IF given the moisture it needs
Last edited: 22 July 2016 12:44:27