How to grow calamus
Calamus is a common ornamental plant loved for its unique shape and fresh smell. In recent years, with the rise of home gardening, the cultivation method of calamus has become a hot topic. This article will give you a detailed introduction to the cultivation techniques of calamus based on the hot content on the Internet in the past 10 days.
1. Basic information about calamus

Acorus calamus (scientific name: Acorus calamus), also known as water calamus, is a perennial herb of the genus Acorus in the family Araceae. It is native to Asia and Europe and often grows in wetlands or shallow water areas. The leaves of calamus are slender, sword-shaped, and have a unique aroma. They are often used for garden landscaping or potted plants.
| Properties | Description |
|---|---|
| scientific name | Acorus calamus |
| Family | Araceae Acorus |
| Origin | Asia, Europe |
| Growth environment | Wetlands, shallow water areas |
| Purpose | Ornamental, medicinal |
2. How to cultivate calamus
The cultivation of calamus is not complicated, but you need to pay attention to the following points:
1. Lighting requirements
Calamus prefers full sun but tolerates partial shade. During high temperatures in summer, appropriate shade should be provided to prevent the leaves from being burned. In winter, sufficient light is needed to promote healthy growth.
| season | Lighting requirements |
|---|---|
| spring | Full sun or partial shade |
| summer | Half shade, avoid direct sunlight |
| autumn | Full sun or partial shade |
| winter | full sun |
2. Moisture management
Calamus likes moisture, but avoid water accumulation. When growing potted plants, the soil should be kept moist and avoid being too dry. If it is hydroponics, you need to change the water regularly to prevent the water quality from deteriorating.
| Breeding method | moisture management |
|---|---|
| potted plant | Keep the soil moist and avoid standing water |
| Hydroponics | Change water regularly to keep water clean |
3. Soil selection
Calamus does not have high soil requirements, but loose, fertile, and well-drained soil is preferred. You can use a mixture of humus soil, garden soil and river sand in a ratio of 2:1:1.
| soil composition | Proportion |
|---|---|
| humus soil | 2 servings |
| garden soil | 1 serving |
| river sand | 1 serving |
4. Temperature control
The suitable growth temperature of calamus is 15-25℃. When the temperature is lower than 5℃ in winter, it needs to be moved indoors to keep warm and avoid frostbite.
| season | suitable temperature |
|---|---|
| spring | 15-25℃ |
| summer | 20-30℃ (need to be shaded) |
| autumn | 15-25℃ |
| winter | Above 5℃ |
5. Fertilizer tips
Calamus does not have high fertilizer requirements, and a thin liquid fertilizer can be applied once a month during the growing season. Stop fertilizing in winter.
| season | Fertilizer frequency | Fertilizer type |
|---|---|---|
| spring | once a month | Thin liquid fertilizer |
| summer | once a month | Thin liquid fertilizer |
| autumn | once a month | Thin liquid fertilizer |
| winter | stop fertilizing | - |
3. Common problems and solutions
In the process of cultivating calamus, you may encounter some problems. The following are common problems and solutions that have been hotly discussed by netizens in the past 10 days:
1. Leaves turn yellow
Yellowing of leaves may be caused by insufficient light, excess water, or a lack of nutrients. Solution: Increase light, control watering frequency, and fertilize appropriately.
2. Slow growth
Slow growth may be caused by cold temperatures or soil compaction. Solution: Increase the ambient temperature and replace loose soil.
3. Pests and diseases
Common pests and diseases of calamus include spider mites and aphids. Solution: Check the leaves regularly and spray insecticides if insect infestations are found.
| question | Possible reasons | Solution |
|---|---|---|
| Leaves turn yellow | Insufficient light, excess water, and lack of nutrients | Increase light, control watering, and fertilize appropriately |
| slow growth | Too low temperature and soil compaction | Increase the temperature and replace the soil |
| pests and diseases | spider mites, aphids | spray insecticide |
4. Summary
Calamus is an ornamental plant that is easy to cultivate. As long as key points such as light, moisture, soil, temperature and fertilization are mastered, it can grow vigorously. I hope this article can provide you with useful breeding guidance to make your calamus more healthy and beautiful.
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