| Salvia patens in all its
forms is proving to be very hardy. New shoots are growing now and the
tubers are still sound. Last year I reassured customers that this plant
was about as hardy as a Dahlia - so if you could leave Dahlias in then
Salvia patens should survive. This year I need to modify this advice:-
Salvia patens are hardier than Dahlias since several of our Dahlias are
obviously dead now.
Salvia guaranitica Blue Enigma and
Argentine Skies are similarly hardy.
Many of the bushy New World Salvias
have lost their top leaves but all are alive at the roots and should
hopefully send up new shoots in spring. Salvia elegans Scarlet
Pineapple has also lost its top growth and so will be later flowering this
year. So of the more tender ones like blepharophylla Painted Lady and
Mulberry Jam have definitely died this year.
Lepechinia hastata kept its top
growth until the middle of the month but now has died back - we'll have to
see if the rootstock has come through. Plants kept in the cold greenhouse
are fine. Janet also has lots of seedling doing well. We save our own seed
of this plant. The seed heads are very sticky and full of the strong (but
pleasant) aroma of the stems and leaves, so collecting the seed is a messy
but enjoyable task. Sow seed in January in some bottom heat and keep
the plants growing on by regular potting on. Keep young plants frost free
and plant out in late May / early June (here).
Kniphofia in the ground have all
survived well and when the weather warms up it is worth cutting off the
old leaves to save a more difficult task later. Our stock in pots is a
different matter, with about 80% now dead.
Hemerocallis are all bone hardy and
we don't see any losses either in the ground or in pots. It is a good idea
to clear away any mushy foliage as this can cause new growth to rot.
Dormant types are already growing now and leaves need protection from
early slug activity. People often ask: "is it slug proof?"
Frankly I don't know of any slug proof plant. Hemerocallis
come to the attention of the slugs now because of the nice fresh growth. Its
not a hard job to inspect them and pick off the offenders. Later on the
plants are not really a target for slugs.
It is now that we start to divide our
Heleniums. Looking around the garden, all seems to have come through the
winter in the ground. A few in pots are looking a bit sad, but on the
whole things are looking hopeful. I have found that plants that
struggled with drought last year are not looking as good now and they will
definitely by dug, divided and brought on in pots under cloches or in the
cold greenhouse. At the end of the month the weather is warm enough
here to plant strong divisions straight into the ground.
|