alder buckthorn

Alder buckthorn (Frangula alnus 'Columnaris') requires regular but moderate watering. This species prefers moist, well-drained soil, so water the plant until the top layer of the soil starts to become damp. Generally, alder buckthorn should be kept consistently moist during the warm and dry weather of the growing season, but it is important to avoid over-watering. In most situations, water deeply once every 7-10 days during the growing season, reducing to once every 3 weeks in the winter. Additionally, plants in higher heat and bright sunlight may require more frequent watering.

Alder buckthorn (Frangula alnus 'Columnaris') grows best in an environment with full sunlight. It prefers direct sun for most of the day, however it will also tolerate some afternoon shade. Ideally for optimal growth, the plant should receive between 6 and 8 hours of sunlight per day, with some direct sunlight present in the morning and again in the afternoon. During the wintertime, it is important to be vigilant in monitoring the hours of sunlight that the alder buckthorn receives, as the days become shorter and the sun is not as present.

Alder buckthorn (Frangula alnus 'Columnaris') requires minimal pruning. You should only prune alder buckthorn in the late winter or early spring, taking care to only remove damaged or diseased branches. Be sure to avoid pruning alder buckthorn more than 1-third of its total growth. Pruning too much can cause damage to the plant, stunting its growth and leaving it susceptible to disease. If pruning severely, you may also want to fertilize the plant to help stimulate new growth.