rattlesnake master (Eryngium yuccifolium 'Prairie Moon') plant — close-up photo
Easy to grow

rattlesnake master

Eryngium yuccifolium 'Prairie Moon'

Overview

The Rattlesnake Master (Eryngium yuccifolium 'Prairie Moon') is an amazing plant species that adds an interesting character to any garden. Its deep blue spiny flower heads and filamentous yellow bracts are sure to make a statement in any landscape. This strong stemmed perennial is quite hardy and will thrive in drier habitats, and its attractive bright green foliage is sure to last from spring to fall. It has also been known to attract butterflies and other pollinators. With its unique and eye catching inflorescence, the Rattlesnake Master is certainly a great addition to any garden.

Care Guide

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Watering

Water rattlesnake master plants when the soil feels dry to the touch, about once per week. Be careful not to overwater, as this can lead to root rot. If the plant is in a pot, allow the top inch of soil to dry out before watering again. In hot weather, you may need to water more often. Water at the base of the plant, avoiding the foliage to prevent disease. Avoid getting the foliage wet to prevent discoloration.

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Light

Rattlesnake master (Eryngium yuccifolium 'Prairie Moon') requires full sun to partial shade for growing optimally. Full sun means at least 6 to 8 hours of direct sunlight each day. Partial shade means 2 to 4 hours of direct sunlight with 4 to 6 hours of indirect sunlight each day. Additionally, the plant should be sheltered from strong winds.

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Temperature

Hardiness zone 3–8.

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Pruning

Pruning Rattlesnake Master plants should be done in late winter to early spring, before new growth begins. Prune away any dead, diseased, or damaged branches and canes. Remove any dead or yellow leaves. Thin out overcrowded stems and branches, especially in the center of the plant. Prune lightly, removing no more than 1-third of the plant's volume. Do not prune the stems where flower buds have formed.

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Propagation

Division, Cutting, Seed Propagation, Layering Propagation

Uses & Symbolism

Attracts: Butterflies.

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