Roundleaf alumroot (Heuchera cylindrica)

Roundleaf alumroot

Also known as: Poker alumroot, Poker heuchera, Alum root, Alpine alumroot

Roundleaf alumroot(Heuchera cylindrica) has ornamental appeal for its attractive leaves and creamy-yellow flowers. Since it has a spreading nature this is a good plant to use as ground cover, especially under partial shade in hotter climates. This plant attracts hummingbirds. The plant's genus name honors German botanist Johann Heinrich von Heucher (1677-1747).

Scientific classification

Species

Roundleaf alumroot (Heuchera cylindrica)

Saxifrages, stonecrops and allies

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Perennial

Lifespan

Herb

Plant Type

Spring, Summer

Bloom Time

Yellow, Green, White, Cream

Flower Color

Green, White, Yellow, Cream

Stem Color

Evergreen, Semi-evergreen

Leaf type

5 - 35 ℃

Ideal Temperature

Spring, Summer

Growth Season

Rapid

Growth Rate

Attributes of Roundleaf alumroot

Growth Rate

In the active growing seasons, Spring and Summer, roundleaf alumroot showcases a rapid growth rate. This swift development manifests in prolific leaf production and a substantial height increase. Additionally, roundleaf alumroot's rapid growth leads to early blooming of its unique bell-shaped flowers. This phenotype makes roundleaf alumroot a notable horticultural asset during these seasons.

Care Guide for Roundleaf alumroot

Every week

Water

Full sun

Sunlight

5 - 35 ℃

Ideal Temperature

Water: Native to rocky woodlands, roundleaf alumroot prefers moderate moisture and good drainage. It requires weekly watering to avoid waterlogging while tolerating brief dry spells. Mulching helps retain soil moisture and regulates temperature, promoting a robust growing season.

Fertilize: For optimal growth, roundleaf alumroot requires balanced fertilizers high in phosphorus during the growing season to support root and flower development. Fertilize every 6-8 weeks in spring/summer, every 8-10 weeks in fall, and not at all in winter. Always water before and after fertilization.

Pruning: Roundleaf alumroot flourishes with proper pruning techniques. In early spring, remove faded flowers and dead leaves to boost growth, while late winter maintenance curtails leggy stems. Clean, sharp tools are essential for preventing disease. These practices enhance roundleaf alumroot's vigor and visual appeal.

Propagation: Roundleaf alumroot thrives when propagated by division. Carefully separate into clumps with intact roots and replant promptly in well-draining soil. Maintain consistent moisture and avoid deep planting to prevent rot. With proper care, new plants will thrive and mirror the original's ornamental appeal.

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