Species rock rose

rock rose

Helianthemum mutabile

Rock rose (Helianthemum mutabile) is an evergreen shrub with an abundance of small bright yellow flowers in the summer months. It is native to the Mediterranean and grows best in well-drained soils in full sun. It can reach up to one meter tall and has small, grey-green leaves. Rock roses need little maintenance, make for a great groundcover and are quite drought-tolerant. When in bloom, rock roses will bring a splash of cheerful colour to a garden!

Cycle:

Herbaceous Perennial

Watering:

Minimum

Propagation:

Seed Propagation,Cutting,Layering Propagation,Division

Hardiness Zone:

5 - 7

Flowers:

Pink to lilac fading to white Flowers

Sun:

Full sun

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Maintenance:

High

Drought Tolerant:

Yes

Salt Tolerant:

Yes

Care Level:

Medium

watering

Rock Rose should be watered well and deeply, about once a week. During hot, dry spells, water more often, making sure the soil is moist but not saturated. During cold spells, reduce watering, allowing the soil to partially dry between watering. Re-potting or fertilizing should be done annually in late winter or early spring. With the right care, Rock Rose will continue to grow and flower beautifully.

sunlight

Rock roses prefer full sun, but can tolerate light shade. They should receive at least 6 hours of direct sunlight a day, ideally between the hours of 8am and 4pm. Provide full sun in the spring and summer, but allow some afternoon shade in the hottest months of the year to prevent too much heat stress on the plant. Avoid exposing your rock rose to full sun during the hottest part of the day, especially in the summer. In the fall and winter, rock roses can tolerate some shade, so they can share the garden bed with shade-tolerant plants.

pruning

Rock rose (Helianthemum mutabile) should be pruned after flowering has stopped, usually from June to July. When pruning, remove spent flowers and trim back overgrown stems. Cut the stems back to a bud, but do not cut into old wood or create a bare stem. If the plant has become overly leggy and has fewer blooms, cut the stems back to encourage the next flush of blooms. Pruning too harshly can reduce flowering. Take care not to cut away too much of the plant; trim lightly and at random.

Season

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

Rock rose typically starts flowering in April and May.

Hardiness Map