Blue waxweed (Cuphea viscosissima)

Blue waxweed

Blue waxweed is an herbaceous annual with tiny reddish-purple blooms that are extremely attractive to butterflies and hummingbirds. The stems have a gummy texture, giving it both one of its alternative names, tarweed, and the second part of its Latin name, Cuphea viscosissima, from the Latin *viscidus* (which roughly translates to "sticky").

Scientific classification

Species

Blue waxweed (Cuphea viscosissima)

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Annual

Lifespan

Herb

Plant Type

2.5 cm to 5 cm

Flower Size

Purple, Red

Flower Color

Green, Purple

Stem Color

Evergreen

Leaf type

20 - 35 ℃

Ideal Temperature

Images of Blue waxweed

Distribution of Blue waxweed

Distribution Map

Blue waxweed, a plant originally native to parts of North America, has an established presence beyond its native range. While endemic to this major region, blue waxweed has been introduced and is now found in both Central America and East Asia. Furthermore, it is not limited to the wild, as cultivation practices have allowed blue waxweed to persist and be maintained in a variety of settings.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Cultivated Beds

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Blue waxweed

Every week

Water

Full sun

Sunlight

20 - 35 ℃

Ideal Temperature

Water: Blue waxweed thrives in humid, subtropical regions, needing consistent moisture and regular weekly watering for optimal growth. Preferring full sun and well-draining soil, it exhibits moderate drought tolerance but is best grown outdoors during its active growing season.

Fertilize: Blue waxweed thrives with high phosphorus fertilizers applied every 6-8 weeks during the growing season. Cease fertilization in winter. Use sparingly to prevent stress, wear gloves, avoid foliage contact, and water thoroughly post-application for even nutrient distribution.

Pruning: Pruning blue waxweed regularly maintains its shape and promotes vigorous growth. Optimal pruning time is early to late spring. Remove dead stems and crowded branches to improve airflow, reduce disease, and foster a bushier appearance. Clean tools are essential for plant health and vitality.

Propagation: Blue waxweed is propagated by sowing seeds in well-draining soil with consistent moisture, avoiding waterlogging. Surface-sow seeds as they need light for germination. Provide warmth and indirect light, and handle seedlings carefully during transplanting due to delicate roots.

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