Rosemary Climate and Soil Requirements
Rosemary Climate Requirements
Rosemary needs at least 6-8 hours of daily sun exposure and prefers warm and moderately dry climates. The plant originated from Mediterranean countries, where average temperatures of 68-86°F (20-30°C) during spring-early summer are common. Soil temperatures above 65°F (18°C) favor growth and regeneration after harvest. However, the plant can definitely tolerate lower temperatures as well. But as an evergreen plant, it cannot go dormant and thus it cannot survive a very cold winter or an unexpected heavy spring frost.
Rosemary Soil Requirements and Preparation
Rosemary plants can grow in all well-drained soils. They can withstand pH from 5,5 to 8. However, the best yields are often achieved in fertile sandy to clay loam soils with pH close to 7 and very good drainage.
The first step towards effective soil preparation is the soil analysis and pH. The soil pH should be corrected to desired levels (6,8-7,5). Moreover, the soil analysis will reveal any nutrient deficiencies, so that the farmer can take corrective actions under the guidance of a licensed agronomist. In most cases, it is beneficial to add 10 tons of well-rotted manure per hectare and plow well before the planting of young rosemary seedlings. In cases of nutrient deficiencies, farmers apply soil fertilizer N-P-K 20-20-20 (400 lbs. or 180 kg per hectare) at the same time with planting and irrigate well the young seedlings.
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Rosemary Growing Conditions
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