Passion Flower Blue

What Passion Flower Blue is

Passion Flower Blue (Passiflora caerulea) is a perennial flower of the passionflower family (Passifloraceae). The flowers are richly decorated, multicoloured, with a minty fragrance similar to the fruits of the pineapple guava.

Passion flower (maracuja) is an exotic climber with incredibly intricate flowers; Passiflora edulis also gives edible fruits. It overwinters indoors.

Key features

• Measured germination rate of the batch: 80%
• Pack size: 0.2 g
• Seed origin: Poland
• Sowing: January – December; seedlings
• Flowering: July – September
• Position: sunny spot

When to sow Passion Flower Blue

Passion Flower Blue seeds are sown in January – December. The plants flower from July to September. The months are a guide for a temperate climate — in warmer areas sow 1–2 weeks earlier, in cooler or upland areas, later.

How to sow and grow Passion Flower Blue

• Sowing method: seedlings
• Depth: 0.5 cm
• Spacing: in a pot, next to a support
• Germination: 14–60 days at 22–28 °C
• Position: sunny spot

Sow indoors at any time. Before sowing, rub the seeds between 2 sheets of fine sandpaper, then soak the seeds in warm water (or fruit juice) for 24 hours. Drain the seeds, then sow them 2-5 mm deep in moist, well-drained seed compost with added vermiculite. Ideal temp. 20°C for 16 hours a day and 30°C for 8 hours a day. If this is not possible, a constant temperature of 26°C is recommended. Germination is erratic and takes 1-12 months. Transplant seedlings carefully and individually when they are large enough to handle. Acclimatise and plant out when the danger of frost has passed. It requires humus-rich, moist but well-drained soil and a spot in dappled shade with plenty of moisture during the growing season; otherwise it is not fussy. It prefers near-neutral soil and does not like very acidic or very alkaline conditions (pH in the range 6 - 8, tolerates 5.5 - 8.5).

Soak the seeds for 24 hours. Germination is slow and uneven.

Flowering and uses

Grown in a pot, taken outdoors in summer.

Frequently asked questions

When should Passion Flower Blue be sown?

The recommended months for sowing are January – December. Sowing method: seedlings.

What is the germination rate of the seeds?

The measured germination rate of this batch is 80%. The test was carried out under controlled laboratory conditions; in the field, emergence depends on soil, temperature and moisture.