gunnera

Watering gunnera plants should be done regularly, with the frequency of watering depending on soil type. In sandy soils, water heavily every 5 to 7 days. In clay soils, water deeply every 7 to 10 days. Avoid shallow watering and drought conditions as this will cause the leaves to wilt and the plant to become stressed. During the summer months, gunnera plants may need to be watered daily. In areas with more natural rainfall, water may not need to be provided at all. If the leaves start to yellow or droop, this is an indication the plant needs more water.

Gunnera tinctoria needs full sun for best growth. Plants should be placed in an area that receives at least 6 hours of direct sunlight per day, preferably in the morning and early afternoon. Gunnera tinctoria can tolerate partial shade and part-sun locations but may not flower or fruit if not in a sunny location. It's best to make sure Gunnera tinctoria receives direct sunlight for at least 6 hours per day in order to promote optimal growth and flowering.

Gunnera tinctoria should be pruned back annually early in the spring season, immediately after flowering. Pruning should remove all flower stems, dead and dying foliage, and any large or woody stems that have been damaged over the winter. Prune the plant back by up to 1-third of its total size to encourage new growth and maintain its shape. The pruned stems should be cut back to just above the point of emergence of healthy leaves. Regular pruning is necessary to prevent Gunnera tinctoria from becoming too woody, unkempt, and unproductive.