Linaria [lin-AR-ee-uh], commonly known as Toadflax, is a large genus of 150 species of flowering plants.This genus of small bright flowering plants is, in fact, one of the largest herbaceous perennials and annuals in the Antirrhineae tribe.The genus belongs to the plantain family Plantaginaceae and was originally placed in the Scrophulariaceae family.They are native to temperate climates in Europe, Asia, and northern Africa.However, the highest species diversity is found in Mediterranean regions.The scientific name Linaria means “resembling Linum or flax.”This is because the foliage of some of the species superficially resembles Linum.
Corn Toadflax Care
Linaria Arvensis
What is the plant
humidity
Normal
lighting
Part sun and part shade
hardiness zone
3a - 9b
difficulty
Medium
hibernation
Cold Period
toxicity
Poisonous
How to Care for the Plant
Water
The plants have average watering needs and are susceptible to root rot when overwatered.Linaria is also a very drought-resistant genus.It can grow in drystone walls once the plants are established.
Pruning
Prune the flowers back once they bloom to prevent self-seeding.
Fertilizer
These plants can spread fairly aggressively and doesn’t need much feeding and regular fertilization to grow and succeed.
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Sunlight
Linaria plants are native to temperate climates and can grow in USDA zones 3a to 9b.The plants love woodlands and gardens and can thrive in both sunny edges, semi-shade light woodlands or no shade.
Soil
Like many other annuals and perennial plants, Linaria also prefers moderately well-drained soil.It can thrive in all kinds of soil, including loam, sand, and clay.As for pH, the plants can grow in mildly acidic (6.1 to 6.5), neutral (6.6 to 7.5), and mildly alkaline (7.6 to 7.8) soils.
Additional
Even though they are avoided by ruminants, they are toxic for livestock.
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