All about growing Mimulus from seed

Growing Guide

Mimulus is fften named monkeyflower after the apparent resemblance the blooms have to a monkey’s face. 

Typically, Mimulus grows in a woodland environment, and can often be seen beside woodland streams. Trailing varieties of mimulus will turn any hanging basket into a profusion of cascading flowers. They will grow freely in spring and when grown in a flower bed it will produce a mound of flowers throughout the summer.

Sow February to May on the surface of a good free draining, damp seed compost. Do not cover the seed. Place in a propagator or seal container inside a polythene bag until after germination. Do not exclude light at any stage, as this helps germination.

Transplant seedlings, when large enough to handle, into trays or 7.5cm pots. Grow on in cooler conditions for 10-15 days before planting out after all risk of frost, 30cm apart.

After flowering, trim plants lightly to encourage a second flush of blooms.

  • Key Information

    Height: to 90cm

    Spread: to 30cm

    Tender perennial

    Sun / semi-shade

    Germination: 10 - 21 days

  • Sowing & Growing Schedule

    Sow Indoors:  February - May

    Sow Outdoors:  n/a

    Plant Out:  May - June

    Blooms:  June - August

  • Varieties we recommend

    Magic Mix

Top Tip

A tender perennial, Mimulus is hardy down to -4°C. Cut back plants after flowering and divide congested clumps in spring or autumn