when should i plant my agapanthus seeds what type of soil do they prefer

information from RHS site~Plant of the month - July
Agapanthus ‘Midnight Blue’

Common name: African blue lily ‘Midnight Blue
Vital statistics
Height and spread: 45cm (18in) tall x 30cm (12in) wide
Form: Clump-forming perennial
Soil: Fertile, moist but well-drained soil
Aspect: Full sun
Hardiness: Fully hardy
Agapanthus Midnight Blue
Agapanthus ‘Midnight Blue’ @ Hyde Hall

The farmhouse garden, in front of the house at Hyde Hall has a symmetrical structure with an informal and soft planting of summer perennials with strong shades of blue, purple and orange being utilised. These vibrant colours stand out in the bright light of this south facing garden and Agapanthus ‘Midnight Blue’ comes to the fore in July and August when its strong, upright flowering stems bears heads of deep blue flowers.

Agapanthus

This is a genus of about six species of vigorous evergreen and deciduous perennials. The evergreen species come from southern Africa and occur in coastal areas, the deciduous ones in moister, mountain grassland in inland regions.

They form bold clumps of large, strap-shaped, usually arching leaves, and bear rounded, intermediate, or pendent umbels of many tubular, bell- or trumpet-shaped, blue or white flowers. The inflorescences are good for cutting and are followed by decorative seed heads.
They do well in a border or in large containers. Most hybrids are deciduous and usually hardier than the species, with dense, rounded umbels, to 20cm (8in) across, of 3cm (1 1/4in) long flowers, and with leaves to 45cm (18in) long.

Agapanthus flowers are borne in three main inflorescence types: rounded umbels of bell- to trumpet- shaped flowers; intermediate umbels of usually trumpet-shaped flowers; and pendent umbels of tubular flowers.

Agapanthus gets its name from the Greek agape, love, and anthos, flower.

Agapanthus ‘Midnight Blue’

This is a clump-forming perennial with intermediate umbels of broadly trumpet-shaped, very dark blue flowers in mid- and late summer.
Cultivation
* Grow in fertile, moist but well-drained soil in full sun. In cold areas, mulch hardy hybrids in winter.
* In containers, grow in loam-based compost. Water freely when in growth, sparingly in winter. Apply a balanced liquid fertiliser monthly from spring until flowering.
*

Slugs, snails and viruses may be a problem.

Propagation
* Sow seed at 13-15°C (55-60°F) when ripe or in spring; keep the seedlings in a frame for the first winter in frost-prone climates. They will flower in two to three years. Most seedlings grown from garden seed do not come true.
* You can also divide agapanthus in spring.
Good luck
Arlene

Sow them in the spring as the days get warmer and longer.
I read somewhere that they dont come true to type by seed.

I have grown some by seed but I couldn't tell you what colour they are or if they are true to type as they could take a few years to flower.

They are happy though and they are living outside in the open ground.

Please tell me you cut and pasted that Arlene.

~of course I did Trees!