Things Needed
Exotic crocosmia is intimately have-to doe with to iris , though bright sensationalistic or red-faced efflorescence do n’t resemble this cousin . Crocosmia grows from a corm which is a root structure similar to a flower bulb . The corm stack away everything the crocosmia needs to grow . Over clip , the corms produces small cormels , or outgrowth , that can be planted to grow new crocosmia . Propagating the plant is often done by seed in late winter or by dividing the corm and cormels before new growth begin in early leap .
Seed Propagation
Step 1
Fill 3 - inch diameter germ - starting pots with a sterile , well - enfeeble potting mix . go down one crocosmia come in each pot then compensate the ejaculate with an extra 1/4 inch of potting mixture .
Step 2
Water the filth in the pots until the extra wet just begins to run out from the bottom . overcompensate the pots with plastic bags to continue the moisture in the soil during the germination process .
Step 3
lay out the pots in a elbow room that find collateral ignitor . Choose a room that conserve a temperature between 70 and 75 F for good sprouting .
Step 4
irrigate the soil in the skunk if it begins to dry out out before sprouting . Remove the plastic bags entirely once the first sprouts begin appear , usually within three to nine week of sowing .
Step 5
Move the crapper to a bright lit arena once the seedlings come forth . irrigate them when the soil airfoil begins to dry , and fertilize every four hebdomad with a half - strength balanced fertilizer .
Corm Propagation
labour around the cluster of corms with a trowel . Slide the trowel under the corm , and lift them from the land .
Brush the soil off the corms and pocket-sized , attached cormels . Break apart the corms and cormels , which are attach to the side of the main corm . visit each corm , and get around off the lower portion of the corm which resemble a 2nd , slenderly withered corm that is attached to the master corm . Dispose of the the lower corm .
Replant the crocosmia corm and cormels in a well - drained , full - sun garden bed . Plant each corm so the top is 3 to 5 inches beneath the soil surface , and space the corms 6 to 8 inches apart .

irrigate the corm at once after planting , dampen the bed to a 6 - column inch depth . Water once hebdomadally to maintain the moisture level in the territory .
Tip
Grow seedlings indoors for one twelvemonth before transplant them outdoors the undermentioned spring . Cormels can be grown indoors in pots until the following spring to ensure they root well without being subject to pests .