Species cup plant Guide

cup plant

Silphium perfoliatum

Cycle:

Herbaceous Perennial

Watering:

Frequent

Propagation:

Seed Propagation,Cutting,Division,Layering Propagation

Hardiness Zone:

3 - 9

Flowers:

Yellow Flowers

Sun:

Full sun Partial sun

Soil:

Loamy

Fruits:

brown,black Fruits Ready In Fall

Leaf:

Yes

Leaf Color:

green

Growth Rate:

High

Maintenance:

Low

Drought Tolerant:

Yes

Salt Tolerant:

Yes

Care Level:

Medium

watering

Cup Plant needs to be watered once or twice a week, depending on the weather and growing conditions. Each time you water, water deeply until water runs off the surface of the soil. Make sure the soil never gets too dry, but don't over-water as this can cause root rot. Check the soil 2-3 inches deep before watering to make sure it is dry. Water in the morning and not at night to discourage fungal diseases. During the warmer months, you may need to water more frequently.

sunlight

Cup plant (Silphium perfoliatum) needs a lot of sunlight throughout the year. Sunlight promotes strong stems, healthy foliage, and profuse flowering throughout the growing season. The plant should receive 3 to 6 hours of bright, direct sunlight each day for optimum growth and flowering. During the spring and summer months, this plant should be exposed to full sun - at least 6 hours per day. During the cooler months, some protection from the midday sun may be beneficial.

pruning

Cup Plant (Silphium perfoliatum) should be pruned once a year in early spring, before new growth begins. To encourage bushiness and increase the number of flowers, the plant should be lightly pruned back. Cut back any dead, damaged, or crossing branches and remove any branch stubs that remain. Any branches growing outward at an angle should also be removed. Avoid heavy pruning, as this will limit the flower production of the plant. Cup Plant will respond well to being cut back to about half its size, so don’t be discouraged if the plant looks bare after pruning.