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Growing Guide
GERANIUMS
Growing Geraniums from seed:
Is easy!
Ensures that plants are cultivated under ideal conditions for optimum health and bloom quality.
Is cost-effective, providing an abundant supply of these striking flowers throughout the growing season.
Geraniums grown from seed often exhibit stronger stems and longer plant life, making them a durable and captivating choice for house plants or in the garden.
Start Indoors:
Timing: Anytime! Can be grown as a houseplant
Seed Depth: 1/8"
Germination time: 7-10 days
Transplant out: Two weeks after last frost date
Quick Guide
Step-by-Step Instructions - Starting Seeds Indoors
Collect Supplies:
Seeds
Seed starting trays or pots (Pots recommended)
Seed starting mix (sterile)
Labels and a marker
Plastic wrap or a humidity dome
Spray bottle or watering can with a fine nozzle
Grow lights or a sunny windowsill
Timing
When to Start: Anytime!
Preparation
Clean Containers: Sterilize your seed starting pots to prevent disease.
Moisten Seed Mix: Slightly moisten your seed starting mix so it's damp but not soggy.
Planting Seeds
Fill Trays: Fill each pot with the moist seed starting mix.
Sow Seeds: Place 1-2 seeds in each cell.
Label Trays: Label each tray or pot with the variety and the planting date.
Germination
Cover Seeds: Bury seeds 1/8" deep and add a thin layer of fine vermiculite to prevent algae growth on soil surface.
Moisten Surface: Use a spray bottle to mist the top of the soil.
Create Humidity: Cover the seed trays with plastic wrap or a humidity dome to maintain moisture.
Warmth: Place the trays in a warm location (70-75°F or 21-24°C). A heat mat can help.
Light and Watering
Lighting: Once the seeds germinate (about 7-10 days), remove the cover and place the seedlings under grow lights or in a sunny windowsill. Provide 12-16 hours of light per day.
Watering: Keep the soil moist but not waterlogged. Water from the bottom if possible to prevent damping-off disease.
Take Care of Seedlings
Thinning: Once seedlings have two sets of true leaves, thin them to one plant per cell or pot.
Hardening Off: About a week before transplanting outdoors, start to harden off your seedlings by gradually exposing them to outdoor conditions for increasing time periods each day.
Growing Indoors
Lighting: Place Geraniums in a bright window sill or in indirect bright light.
Watering: Water once a week during the spring and summer. And once every 10-14 days during the winter.
Fertilize: Fertilize every 2-3 weeks with a water soluble fertilizer or about once a month with time release fertilizer.
Transplanting Outdoors
Timing: Transplant the seedlings outdoors after all danger of frost has passed.
Soil Preparation: Choose a sunny spot with well-draining soil. Amend with compost if needed.
Planting: Plant seedlings 8-12 inches apart, depending on the variety.
Watering: Water thoroughly after planting.