Campanula

Spring-Autumn · Indoors

Feed with houseplant food monthly

Give the plant a balanced houseplant feed monthly while in growth.

Where food elements are listed as three numeric values on the label representing in order Nitrogen(N)-Phosphorus(P)-Potassium(K), with percentage values for each, choose one where the values are more or less equal.

Spring-Autumn · Indoors

Water regularly during growth

Water regularly while in growth.

Adopt a regime that means the plants are thoroughly watered every week so that they do not become dessicated. In hot weather watering may need to be more frequent, but less often in cool or moist conditions.

Spring-Winter · Indoors

Mist the plant daily

Soft or rain water is preferred as it doesn't mark the foliage. Don't mist when the plant is in sunshine or the foliage could be scorched.

Mist the plant daily.

Spring-Autumn · Outdoors

Water in dry periods

Established plants in the ground can cope with 7-10 days of dryness, and shrubs often manage 2 to 3 weeks. Water one section of the garden thoroughly each day rather than a little everywhere. Check plants in pots more often, especially in hot weather.

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

Protect from slugs & snails

Protect young plants and new growth from slugs; mature plants can withstand slugs though damage affects their appearance. Apply nematodes in Spring. Or sprinkle organic slug pellets thinly around plants. Barrier methods, eg copper tape, may help.

Winter-Spring · Indoors

Water lightly in winter

The soil should remain just moist during the cold months when the plant is not in growth. Trickle a little water onto the soil surface every couple of weeks if the soil is dry. Do nothing if it is moist.

The roots remain active in winter and benefit from small amounts of moisture so they don't become completely desiccated.

Outdoors

Feed & mulch some rose varieties differently

To keep roses healthy and produce more flowers, feed during the growing season before and after flowering. Roses in containers should be fed more often than those planted in the ground, every two weeks from mid spring to late summer. Adding a mulch around the base of a rose will trap moisture and enrich the soil as it biodegrades.

Outdoors

Water some varieties differently

Some plants within this genus have additional requirements for water. It is best to look up your specific plant, or the species it belongs to for watering guidance.

Planting

Prune some varieties

Some plants within this genus have additional requirements for pruning. It is best to look up your specific plant, or the species it belongs to for pruning guidance.

Planting

Support some varieties

Some plants within this genus may require support for young plants and/or long stems. It is best to look up your specific plant for guidance, and/or check the label.

Compost · Planting

Loam based houseplant compost for repotting

Buy container or house plant compost that is loam based if possible (i.e. is based on John Innes compost number 2 or 3. This contains more fertiliser and is better suited to established plants.

John Innes no. 1 has the lowest level of fertiliser and is used for seedlings and young plants, so is generally used where plants will be 'potted on' after a number of weeks.

Indoor temperature · Planting

7C minimum temperature

This plant requires a minimum temperature of 7 Centigrade.

Planting

Divide some varieties differently

Some plant varieties within this genus have different requirements for dividing them when they get big. It is best to look up your specific plant, or the species it belongs to for guidance, and/or check the label.

Indoor plant · Planting

Position in a sunny spot, close to window

Give this plant a position where there is as much light and sunlight as possible, within 2-3 metres of a sunny or bright window (one that is south, east, or west facing).