Phyllostachys viridiglaucescens

Spring - late · Outdoors

Feed with slow release fertiliser

Apply a general purpose slow release fertiliser, spreading it around the root area of the plant as it is coming into growth. (Or apply a liquid feed at regular intervals throughout the growing season.)

This is a simple way to provide a nutrient boost as a single annual procedure.

Spring-Autumn · Outdoors

Feed bamboo in pots

For bamboos in pots, it may be easier to feed the plant with a liquid fertiliser diluted in water. Stand the pot on a saucer or tray while the feed in water is absorbed by the plant. This may also help to revive bamboos that cannot be repotted.

Spring-Autumn · Outdoors

Water during drought

After three or four weeks without rain, except for drought tolerant plants, those in the ground often get stressed. Adopt the habit of deep-watering one section of the garden each day. Check plants in pots more frequently, especially in hot weather.

Encourage plants to develop good root systems by giving occasional deep watering. Some plants, such as conifers and heathers, do not show much sign of distress so water these if in doubt.

Spring · Planting

Prune bamboo to thin the plant

Remove some of the old canes cutting them off at ground level.

The plant is more attractive if canes are spaced out, rather than crammed together.

Spring - early-mid · Planting

Divide when too large

The plant can be divided if it becomes too large or another plant is required. This may involve physically dividing the clump in two, removing offsets or small bulbs or dividing rhizomes. The new plants can be grown in pots or planted in the ground.

Spring-Autumn · Planting

Root pruning to control invasive growth

Use a sharp spade to dig into the soil, cut and remove bamboo rhizomes and roots that are outside the desired growing area. Do this 2-3 times during the growing season.

Root barrier · Planting

HDPE root barrier to prevent invasive growth

Add an HDPE (high density polyethylene) root barrier around the edge of the growing space when planting to prevent invasive growth. Dig a trench at least 1.2m deep. Line the sides and overlap the material by 30cm. Barrier should be 7.5cm above soil level.