David,
I water Lewisia rediviva from about now (when people who keep bulbs in pots start to water them) and keep it watered though out the winter. When the first flower buds start to show in about March I stop watering completely and allow the soil to get like dust (they sit on a shelf in the greenhouse) The leaves will die down but the flower buds continue to grow, flower and set seed. They are then baked until it is time to water them again.
For seedlings I keep them growing for their first summer/autumn
Hi Susan, I nearly missed this one so sorry for being so late in replying.
Now you have given me a quandry, on two counts! Firstly, you say 'water from about now-when people who keep bulbs in pots start to water them' NOW? in the past I haven't watered my bulbs in pots until late August when I couldn't wait any longer for the BD's 'September shower' Am I leaving things too late?
My second quandry is on your particular watering regime for Lewisia rediviva. Up to now I have based all my Lewisia cultural regimes around an article Philip Baulk, of Ashwood Nurseries, wrote in an AGS Bulletin in 1988. As far as L. rediviva is concerned he says:-
'........After flowering is finished in May or June it completely disappears into it's layer of grit and will not re-emerge until late September/early October. By the end of October a nice tuft of deep green leaves will be clearly visible and the plants can be re-potted. Only the bare minimum of water should then be given until the turn of the year when a gradual increase in watering will be needed to match a second burst of growth.......'
Now, given my inability to get L. rediviva to flower at all I am happy to try a different regime but yours does seem to be nearly the opposite of Philip Baulks? Maybe my L. rediviva hasn't been reading the Article!