Slender vervain

Slender vervain Care

Verbena rigida

What is the plant

Verbena rigida, known as slender vervain or tuberous vervain, is a flowering herbaceous perennial plant in the family Verbenaceae. It is native to Brazil and Argentina. In temperate climates, it is grown from seed as an annual.

Verbena rigida, or slender vervain, is a low-growing perennial species that produces an abundance of punchy purple flowers from summer and into autumn. Its lax growing habit makes Verbena rigida fantastic for planting in great swathes and softening the edges of borders. It will also self-seed, and makes a great addition to sunny gravel gardens and wildlife gardens. Growing to 60 centimetres (24 in), it has a spreading habit, with stalkless toothed leaves and clusters of bright purple or magenta, scented flowers, held on branched stalks, in summer. Numerous cultivars have been selected for garden use.

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Humidity

Normal

Lighting

Full Sun

Temperature

5°C - 5°C

Hardiness zone

7a - 9b

Difficulty

Medium

How to Care for the Plant

Water
Keep plants evenly moist until established, when they can tolerate some dry spells. Verbena is somewhat drought tolerant, and it certainly does not do well in boggy conditions, but you must not underwater it either. Soggy plants will succumb to botrytis blight, but drought-stressed plants will attract spider mites. Water verbena as you might your lawn, with an inch of rain or irrigation each week.
Fertilizer
Verbenas are not heavy feeders, but they do appreciate a monthly application of a balanced, slow-release flower fertilizer to help them keep up the flower show, which can last from spring until frost.
Sunlight
Choose a place in full sun. The plant wants at least six hours of sunlight a day.

Disease diagnosis

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Soil
The plant prefers a moderately fertile, moist, well-drained soil.
Temperature
These plants can be grown as perennial in the areas with the lowest winter temperatures between 0°F and 10°F or -17.8°C and -12.2°C. In colder regions, it can be grown as annual.
Popularity
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