Posted: 29/05/2015 at 08:12
Lupins can be a little finicky at times, esp when young. I never plant out small lupins...all are grown on in a minimum of 1 litre pots but usually in 3 litres. Occasionally on my neutral soil ...quite rich soil too ....lupins get a touch of chlorosis. The solution is a couple of epsom salt sprays and then they are fine.
I love lupins...nothing quite like them I think. So. Grow them well before planting out. If you buy them now they should be large plants and hardened off so you can plant straight into the soil. They need watering at firsf but then just enough that they dont dry out. I remove flowered stems just as they start to go over ....this enables me to have 2 or 3 further flushes of flowers.