PETUNIA SEEDS GERMINATION MONTH HOW TO

The trumpet-shaped flowers come in just about every color imaginable, even the once-impossible yellow, and the flower forms range from single to double, ruffled, striped, and scalloped. They are branching, creeping plants with light-green, hairy leaves that can be sticky. Petunias are one of the easiest annuals to grow, especially if they are purchased as plants. Weeks to Maturity: 8 to 10 weeks Indoor Seed Starting: 8 to 10 weeks before first frost Earliest Outdoor Planting: after last frostĪdditional Plantings: not needed Last Planting: not needed Description Seed to Harvest/Flower: 14 weeks Seeds Storage: Growing Season Spring: late Summer: yes Fall: early Winter: no TIP The seedlings should emerge within a week.Family: Nightshade Height: 6 to 24 inches A/B/P, Hardiness: half-hardy annual Spacing: 2 per square Petunias like a moist, well-drained growing medium and the seeds don’t like to be covered in too much soil, so we took the seed cell tray out of the greenhouse and used the base for sowing.

PETUNIA SEEDS GERMINATION MONTH HOW TO

How to Grow Petunias in a Mini Greenhouse Position petunias about 300mm apart and keep the area weed-free. To plant them out in the garden, choose a spot with good drainage that gets plenty of light but not harsh afternoon sun and has good airflow. The seedlings can be put outside on warm days to acclimatise but make sure they’re protected from direct sun and wind, bringing them back inside at night.

Lift them carefully out of the growing medium with a stick, being careful not to disturb the roots or let them dry out. When the seedlings emerge you can remove the mini greenhouse cover and let the growing medium dry out slightly between waterings.Īfter about 14 to 21 days the seedlings can be transplanted to pots or a windowbox. Taking petunias from germination to garden bed takes about six weeks. Once your seeds are ready to germinate it’s time to plant them. TIP Some greenhouses are called propagation units and have a built-in heater to regulate the soil temperature. Replace the lid and position the mini greenhouse in a spot with lots of light but no direct sun. Sow the seeds in the tray and use a spray bottle to mist the potting mix with water, creating humidity. This features a tray with a lid that has vents so you can control airflow.įor successful germination the soil temperature needs to be 16☌ which is easily checked with a thermometer. To provide the required warmth, shelter and moisture the easiest option is to use a mini greenhouse. You can nurture the seedlings by growing them indoors until they’re ready to be planted out.

Petunias are popular for adding a splash of winter colour but if you sow them in the garden, frost can kill seedlings as they emerge. Get planting for blooms you can enjoy in the ground, in pots and out, or as cut flowers. With just a little planning you can enjoy the sight and smell of flowers during every month of the year.

=> Keep the garden in leaf and bloom all year with our seasonal guides on what to grow and when to sow. Keep the garden in leaf and bloom all year with our seasonal guides on what to grow and when to sow.

Petunia seeds germination month