Rock rose typically starts flowering in April or May.
rock rose
Helianthemum nummularium
Rock rose (Helianthemum nummularium) is an evergreen perennial native to many parts of Europe and North America. It is a low spreading shrub with oval-shaped bright green leaves and attractive bright yellow, five petaled flowers that bloom in late spring and early summer. Rock Rose prefers well-drained soils in full or partial sun and has moderate water needs. It is hardy and can tolerate drought conditions, once established. Rock rose makes an attractive addition to any garden bed with its abundant and showy flowers. Use it as an edging plant, in containers or hanging baskets, or simply as a ground cover for a colorful display.
Cycle:
Herbaceous Perennial
Watering:
Minimum
Propagation:
Seed Propagation,Cutting,Layering Propagation,Division
Hardiness Zone:
5 - 7
Flowers:
Pastel pink or yellow Flowers
Sun:
Full sun
Soil:
Well-drained
Fruits:
brown,black Fruits In Summer Ready In Summer
Leaf:
Yes
Leaf Color:
green
Growth Rate:
Low
Maintenance:
Moderate
Drought Tolerant:
Yes
Salt Tolerant:
Yes
Care Level:
Easy
watering
Rock Rose should be watered moderately - as it prefers to dry out for a few days between waterings. Water with tepid tap water once or twice a week, allowing the soil to dry out in between waterings. During the summertime when the plant is actively growing, it may need to be watered more frequently to ensure that the soil remains moist, particularly in hot months. Reduce watering in the winter months so it’s only needed once or twice a month to keep the soil lightly moist.
sunlight
Rock roses need plenty of direct sunlight in order to thrive. They prefer at least 6 to 8 hours of sunlight per day. When planting a rock rose, it is important to site it in an area where it can get the desired amount of sunshine. In addition, it should be planted in an area that has good air circulation. This will help the plant to be strong and healthy and ensure that its blooms look their best.
pruning
For Rock Rose (Helianthemum nummularium), pruning should be done lightly and selectively to maintain the desired shape and size of the plant. Pruning should be done in early spring, immediately after flowering has ended. Pruning should begin by removing any dead, diseased, or insect-infested stems. If the branch is healthy, then selectively prune off new growth to maintain the desired shape and to open up the centre of the shrub. Pruning should be limited to no more than 1-third of the total amount of growth. If the plant is overgrown, then a more severe pruning to shape the plant may be required.
Season
Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering
Harvest Fruit
The harvesting of Helianthemum nummularium, or rock rose, typically begins in June and continues through August.
