How to grow Haworthia cooperi correctly? What should be noted

SummarySoil: To grow Haworthia cooperi, choose soil with good air permeability, good drainage, and that does not easily clump; you can also mix your own substrate. Watering: Haworthia cooperi is drought-tolerant and cold-tolerant; water sparingly in summer and maintain air humidity. Temperature: It should not be lower than 8°C or higher than 35°C, and direct strong light should be avoided. Reasonable fertilizing: In spring and autumn, vigorously growing plants can be given a once-monthly application of fully decomposed dilute fertilizer liquid. Repotting: Repotting can be done in spring or autumn. Precautions: Increase ventilation, do not expose to blazing sun, and control the temperature difference.

I. Soil requirements

For planting Haworthia cooperi, choose soil with good air permeability, relatively good drainage, and that does not easily clump; you can also use orchid stone, plant gold stone, akadama soil, and peat soil mixed in a certain ratio to make a substrate for planting.

II. Timely watering

Haworthia cooperi is drought-tolerant and cold-tolerant, and is suitable for growing in a cool, semi-shaded environment. It must not be exposed to direct strong light. In the hot summer season, water sparingly to prevent water accumulation at the bottom of the pot, which can cause root rot.

III. Growing temperature

The suitable growing temperature for Haworthia cooperi is around 15-28°C. The maximum temperature should not exceed 35°C, and the minimum temperature should not be lower than 8°C. If Haworthia cooperi is kept in an environment below 5°C for a long time, the leaves will suffer frost damage.

IV. Reasonable fertilizing

Newly potted plants and relatively weak-growing plants should not be fertilized. For relatively vigorously growing plants, apply a fully decomposed dilute liquid fertilizer once a month, generally in the morning or evening on clear days. Plants in dormancy in summer or winter do not need fertilizing.

V. Light requirements

If the plant receives insufficient light, it easily leads to a loose, non-compact plant shape, poor leaf transparency, and thin, elongated leaves. If the light is too strong, it will affect leaf growth, turning them light reddish-brown,  and direct strong light will cause leaf scorch, so the plant is suitable for maintenance in a semi-shaded place.    

VI. Repotting

1. Generally, Haworthia cooperi is repotted every year in spring or autumn. If during the growing period the plant shows shriveled leaves and slow growth, it is very likely that the root system is damaged. At this time, the roots need to be sorted out and the plant repotted.

2. The plant only needs to retain the thick, strong white new roots; cut off the aged, hollow roots, shorten overly long roots, and then plant it in nutrient soil.

VII. Air humidity

Haworthia cooperi is suitable for growing in an environment with relatively high air humidity. If the air is dry, to increase air humidity, regularly spray water around the plant or on the ground. During the growing period, you can also cut half of a transparent plastic bottle and cover the plant with it, which is more conducive to plant growth. When the temperature is relatively high, the cover needs to be removed to avoid suffocating the plant.

VIII. Precautions

1. In the stuffy summer, ventilation must be strengthened. Place Haworthia cooperi in a ventilated, dry, and cool place for maintenance. Do not expose it to blazing sun or long periods of rain. In summer, water sparingly and stop fertilizing.

2. Be sure to control the temperature difference well. In winter, keep the daytime temperature above 15°C and the nighttime temperature not below 8°C, and water appropriately.