Species false gromwell
White-beige buds with lime-white stigma, , white hair, green leaves and stems, yellow midrib and veins.

false gromwell

Onosmodium molle subsp. occidentale

False Gromwell (Onosmodium molle subsp. occidentale) is an attractive, summer-blooming wildflower native to North America. It has finely dissected, light green foliage and produces delicate nodding flowers with white petals and yellow stamens in early to mid summer. False Gromwell is a perennial plant that prefers dry, open, sunny habitats such as sand dunes, grasslands, and prairies. It is an easy-to-grow species and is widely used for ornamental landscaping, as well as a food plant for various wildlife species. It adapts well to different soil types, but prefers well-drained soils. False Gromwell is a great option for butterfly gardens and meadows.

Cycle:

Herbaceous Perennial

Watering:

Minimum

Propagation:

Seed Propagation,Division,Cutting

Hardiness Zone:

3 - 8

Flowers:

Creamy white to yellowish-green Flowers

Sun:

Full sun,part shade

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Maintenance:

Low

Drought Tolerant:

Yes

Salt Tolerant:

Yes

Care Level:

Medium

watering

False gromwell plants should be watered when the surrounding soil is dry, about once or twice a week. However, this may vary in specific environmental conditions. During the summer months, it is important to maintain a moist base for these plants. Once the soil surface has dried out, the soil should be thoroughly watered. Make sure to also water the plant's foliage in addition to the surrounding soil, as this helps the plant absorb essential nutrients and helps keep the leaves looking healthy. Additionally, it is important to avoid over-watering the false gromwell as this can damage its root system.

sunlight

False gromwell plants prefer full sun and well-drained soil. They should be exposed to a minimum of 6 hours of direct sunlight every day in order to thrive and grow properly. If grown in areas with partial sunlight, it is important to ensure that the plant receives a minimum of 4 hours of direct sun each day. To maximize the plant’s sunlight exposure, it is best to plant the false gromwell in an area where it is not shaded by larger plants. During the summer months, the plant will benefit from additional sunlight as temperatures rise.

pruning

False gromwell should be pruned back in late fall or early spring before new growth begins. Pruning should be done in moderation, removing only dead or thin stems and trimming back the plants as necessary in order to maintain an appropriate size and promote a bushy growth habit. It is important to make sure that the stem is cut back at least a few inches from the old woody growth to ensure that new growth will be able to form. After pruning is complete, the plants should be provided with enough water to help them to recover.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

False gromwell typically starts flowering in June.

Hardiness Map