A friend gave me a box of crocosmia bulbs she had dug up this fall. Her plant had gotten too large. How do I store them? They look like they have 3 bulbs stacked together on each corm.
If you don't want to plant them now, you can store them indoors. Dry them out for a few weeks, then store them in a paper bag in a cool, dry place around 35-45 degrees.
do I cut back plant leaves after bloom or leave alone?
The spent flower stem can be cut down. The leaves should be left to die back naturally.
The flowers are almost gone, and the plants are heavy with their seeds, I think! Not looking very attractive, and too dominant in the flower bed...can I cut them back, and if so, how?
You can cut back the seed heads and stalks, but it is best not to cut back the leaves until they die on their own at the end of the growing season. The plant needs them to store energy for growing and blooming next year.
Can you cut back the leaves of Crosimia while still green, or should they be allowed to die back?
Allow them to die back naturally.
Lucifer has been a bit disappointing for the last two years or so. It lies all over the place, rarely standing upright, and does not show to its known effect. I have dug up the corms, intending to replant them deeper in the hope that this will encourage them to stand tall. In everything I read, it says "3-5 inches deep". So, would planting them deeper encourage upright habit? If not, what to do...? Thanks.
Planting crocosmia slightly deeper will help. Also this article will give you some more information:http://nassau.ifas.ufl.edu/horticulture/demogarden/plants/crocosmia.html
I have tried a number of times to grow from corms. I have planted into pots, 4 inches deep. I get nothing. I water once and routinely check the soil moisture. Do they need warmth over 60 degrees? What is missing. I have no example to show, just empty pots. I have been a landscape designer for over 25 years and am just stumped! Thanks, Mary Czisny Kanavas Landscape Management
Yes, 60 degrees would be the minimum for sprouting. If you want a headstart, you can put them in container, and put them under lighting until the soil warms up a bit. Depending on your area they may not be hardy, but that is not likely.
This article will give you more information: https://www.gardeningknowhow.com/ornamental/bulbs/crocosmia/crocosmia-bulb-care.htm
How long does it take for this corymb to come up,?
It should only take these a few weeks if it was stored correctly. This article will give you more information on the care of these: https://www.gardeningknowhow.com/ornamental/bulbs/crocosmia/crocosmia-bulb-care.htm