How to cultivate willow verbena

Verbena officinalis often appears as a complete sea of ​​flowers. Many people who are not familiar with this plant regard it as lavender. In fact, Verbena is not a very small flower, so if you want to know more, let us learn how to cultivate this plant ~

It is a species of Verbenaceae Verbenaceae, plant height 60-150cm. The leaves at the seedling stage are oval, with cracks at the edges. The leaves are dark green and clustered at the base. When the flower stem is lifted, the leaves become long and thin, like the edges of the willow leaves, and there are sharp cracks on the edges. The stem is square and the entire plant has fibrous hairs. The flowering period is from June to October. The cymes, small tube of peanuts are on the top of the flower stem, the color is lavender, fragrant and elegant, attracting bees and butterflies.

A suitable choice for the cultivation of willow verbena is loose humus soil, thin fertilizer (0. 5 kg / m 3 compound fertilizer, iron, trace elements), good drainage conditions (0-20% Vermiculite), pH 5. 5-6.0. In this way, Verbena can grow well ~

It likes a warm climate, the suitable growth temperature is 20-30 ℃, not cold-resistant, and grows relatively slowly below 10 ℃. Therefore, even if the weather is slightly cold, verbena can be planted, but the appropriate growth temperature needs to be considered during reproduction.

Water should be planted after planting to ensure that the 20 cm soil layer remains moist. After planting 1. 5-2. 5 months into the early flowering period, the flowering period can be maintained 2. 5-3 months Since the stems and leaves of Verbena turn into a willow shape, it is enough to prove that it is a drought-tolerant flower variety, so it should not be too wet during the maintenance process.

It grows well under full light environment. If cultivated in an environment with insufficient sunlight, it will grow poorly. Provide long-day sunshine (over 14 hours) to induce verbena flowering (light-sensitive). Short-day sunshine (12 hours or less) nutrition is enough in the early seedling raising period, and long-term sunshine should be given in the later period to promote the differentiation and development of verbena flower bud.

Verbena officinalis has medium to high fertilizer requirements, and after transplanting into flower pots for 2 weeks, the potassium-based compound fertilizer and balanced compound fertilizer (nitrogen 2 00 ～ {{ 0}} 5 0 mg / L), nitrogen: potassium oxide is 1: 1. 5. Pay attention to maintain sufficient iron content and magnesium salt, if not enough, apply 1 ~ 2 times iron chelate and 0.0 2 5% Epsom salt.