Flame Nettle

Watering requirements for Flame Nettle plants can vary somewhat depending on the temperature and light level the plant is exposed to. For best results, the soil should be kept consistently moist but not soaked. The top three inches of soil should be checked to see if it’s dry before watering, and the plant should be allowed to dry out slightly between waterings.

Flame Nettle plants prefer bright, indirect light. In its natural environment, this plant can survive in full sun, but for best results indoors, the plant should be kept in south- or east-facing windows. If necessary, a low light level can also prove suitable. The leaves will be larger and more vibrant, however, in rooms that are lighter.

Flame Nettle plants grow best in temperatures of 65°–75°F (18°–24°C), making them ideal for indoor environments. Heat above this range can cause the leaves to scorch and die back, while temperatures below this range can cause the plant to slow its growth and even die.

Flame Nettle plants prefer a moderate to high level of humidity. If possible, mist the leaves daily with lukewarm water or place a humidifier nearby. Proper air circulation should be ensured as well.

Flame Nettle plants prefer soil that is high in organic content and well-draining. The right mix should consist of equal parts of a fast-draining material, such as compost, peat, and perlite. This will provide just the right balance of water drainage and moisture retention.

Flame Nettle plants should be fertilized during their active growing season, between early spring and late summer. An all-purpose houseplant fertilizer or balanced liquid fertilizer should be given to the plant every two weeks. During their resting period, there is no need to fertilize and any build up of salts and fertilization should be flushed out of the soil with a generous amount of water.

Flame Nettle plants are relatively resistant to pests, but a few, such as aphids, spider mites, and mealybugs can affect them. Upon noticing pests, it is important to identify them before taking action. Neem oil, insecticidal soap, or horticultural oil found at garden centers can be used to help get rid of them. Additionally, overwatering should be avoided to prevent attracting fungal diseases.

Especially when grown indoors, Flame Nettle plants should be repotted every 2–3 years in early spring. The potting medium should be well-draining soil and should contain compost for best results. The pot should have adequate drainage holes and should only be one size bigger than the previous pot.

Flame Nettle plants do not typically require any pruning unless they are becoming too large for the pot. When necessary, pruning should be done at the end of the growing season, as this will provoke additional growth. Dead leaves and stems should also be removed regularly.

Mulching helps to keep the soil moist and can also help to protect the root system. Good mulch choices for Flame Nettle plants are shredded bark or compost.

Flame Nettle plants can be propagated through stem cuttings taken during the summer or fall. Cut off a mature stem from the plant, and before planting, remove the lower set of leaves and dip it in rooting hormone to increase the chances of successful propagation. The cutting should then be planted in moist soil, and kept in a location that receives indirect sunlight. Once at least one set of roots has formed, the propagated plant can be nurtured and eventually transplanted.

Since Flame Nettle plants are slow-growing, they do not require support. However, when the plant begins to grow larger it may need staking in order to hold up the stems under weight.

During the late months of fall or winter, Flame Nettle plants require a “rest period” to grow healthily and vigorously. This should include reducing water and fertilizer amount and keeping away from direct light. During this period, the solution is to prevent leggy growth or delay blooms by removing any yellowing leaves and reducing watering.

Flame Nettle plants are not toxic to pets.