Geranium Edible Flower Seeds

For the most reliable establishment, raise Geranium seedlings in trays, cells or small pots before transplanting.

Sowing Method

Starting seed under controlled conditions is preferable to direct sowing because consistent warmth and moisture improve establishment.

To raise seedlings:

1. Fill trays, cells or small pots with a fine, free-draining seed-raising mix.
2. Moisten the growing medium thoroughly before sowing.
3. Sow one seed per cell where practical.
4. Cover with approximately 3mm of fine seed-raising mix or vermiculite.
5. Water gently to settle the growing medium.
6. Keep the mix consistently moist during germination.
7. Maintain warm conditions.
8. Provide strong light once seedlings emerge.
9. Gradually reduce moisture after germination while preventing seedlings from wilting.
10. Transplant once seedlings are well established and strong enough to handle.
11. Harden plants gradually before moving them permanently outdoors.

Sowing Depth

Sow approximately:

3mm deep

Cover the seed lightly with fine seed-raising mix or vermiculite.

Avoid planting too deeply, as this can slow emergence.

Best Sowing Season

Geraniums require warm germination conditions but can be started at different times depending on climate.

As a practical Australian guide:

• Cool climates: late winter to spring under protection; transplant after frost
• Temperate climates: late winter through spring
• Subtropical climates: autumn through spring
• Tropical climates: cooler, drier months
• Hot or arid climates: autumn or spring, avoiding extreme summer heat

Do not transplant tender seedlings into frost-prone conditions.

Germination

Expect germination in approximately:

7–21 days

Aim for a germination temperature of approximately:

22–25°C

During germination:

• Maintain even moisture.
• Do not allow the growing medium to dry completely.
• Keep conditions warm.
• Avoid excessive heat.
• Maintain clean growing conditions.
• Provide good light once seedlings emerge.

Plant Spacing

Space established plants approximately:

25–30cm apart

This allows compact, branching plants to develop while maintaining airflow through the foliage.

Position

Grow Geraniums in:

Full sun to partial shade

For strong flowering, provide plenty of bright light.

Plants generally perform well with:

• Full sun
• Light partial shade
• Good airflow
• Well-drained soil
• Protection from severe frost
• Some shelter from extreme heat where necessary

In very hot climates, protection from intense afternoon sun can be beneficial.

Soil & Drainage

Excellent drainage is important.

Choose a growing medium that is:

• Free draining
• Moderately fertile
• Porous
• Loose enough for healthy root development
• Not permanently saturated

For garden beds, avoid low areas where water collects after rain.

For containers, always use pots with effective drainage holes.

Watering

During germination, keep the growing medium consistently moist.

Once established:

• Water thoroughly when required.
• Allow the upper growing medium to begin drying before watering again.
• Let excess water drain freely.
• Check containers regularly during hot or windy weather.
• Reduce watering during cool or prolonged wet conditions.
• Avoid leaving pots permanently standing in water.

Established Geraniums tolerate moderate drying better than persistently waterlogged roots.

Feeding

Geraniums respond well to moderate, balanced feeding while actively growing and flowering.

In reasonably fertile garden soil, heavy feeding is usually unnecessary.

Container-grown plants can be fed periodically during active growth.

Avoid excessive nitrogen, which can encourage soft leafy growth at the expense of balanced flowering.

Growing Geraniums in Pots

Geraniums are particularly well suited to container growing.

Choose:

• A pot approximately 20–25cm wide or larger
• Effective drainage holes
• Quality free-draining potting mix
• A sunny or brightly lit position
• Reliable access to water

For container growing:

1. Fill the pot with suitable potting mix.
2. Transplant an established seedling.
3. Water thoroughly after planting.
4. Position in strong light.
5. Allow the upper growing medium to dry slightly between established-plant waterings.
6. Feed periodically during active flowering if required.
7. Remove declining flowers and damaged foliage.

Growing Geraniums in Garden Beds

Choose a sunny, well-drained position.

Before planting:

1. Remove weeds.
2. Loosen compacted soil.
3. Improve poor soil where necessary.
4. Make sure excess water can drain freely.
5. Space plants approximately 25–30cm apart.
6. Water thoroughly after transplanting.

Maintain reliable moisture until roots are established, then reduce watering frequency rather than keeping the soil constantly wet.

Encouraging More Flowers

To support continued flowering:

• Provide plenty of sunlight.
• Maintain moderate watering.
• Feed container plants appropriately.
• Remove damaged foliage.
• Maintain good airflow.
• Remove ageing flower clusters.

Healthy plants can continue producing flowering stems throughout favourable conditions.

Deadheading

Remove old flower clusters once they begin deteriorating.

To deadhead:

1. Follow the spent flowering stem back towards the main plant.
2. Remove it cleanly.
3. Avoid leaving a long bare stalk.
4. Discard mouldy or diseased flowers.

Regular deadheading keeps plants tidy and reduces decaying material around new growth.

Protecting Geraniums from Frost

Geraniums are tender perennials and can be damaged by frost.

In frost-prone areas:

• Start seedlings under protection.
• Wait until frost danger has passed before planting outdoors.
• Grow plants in movable containers where practical.
• Move valuable container plants into a frost-free location before severe winter conditions.

In warm frost-free climates, plants may continue beyond a single flowering season.

Managing Hot Weather

Established plants handle warmth reasonably well, but extreme heat can reduce flowering.

During very hot weather:

• Check container moisture regularly.
• Water deeply when required.
• Avoid severe wilting.
• Provide some afternoon protection where temperatures are extreme.
• Maintain airflow.
• Do not keep the soil constantly saturated in an attempt to compensate for heat.

Harvesting Edible Geranium Petals

For culinary use, harvest fresh flower petals rather than leaves or stems.

Choose flowers that are:

• Freshly opened
• Clean
• Undamaged
• Dry rather than wet from irrigation or rain
• Grown specifically for culinary use

To prepare:

1. Harvest flowers with clean scissors or gently remove the flower.
2. Inspect carefully for insects.
3. Separate the petals from the rest of the flower structure.
4. Remove damaged or discoloured petals.
5. Rinse gently in clean water where required.
6. Use relatively small quantities as a garnish.

The petals have a mild, lightly floral to herbal flavour and can be used to decorate:

• Salads
• Cakes
• Desserts
• Fruit plates
• Platters
• Other culinary presentations

Food Safety for Edible Flowers

Only consume Geranium flowers that have been correctly identified and intentionally grown for culinary use.

• Use clean gardening equipment and water.
• Do not consume flowers treated with chemicals that are not approved for edible crops.
• Avoid ornamental florist or nursery plants unless their treatment history is known.
• Avoid roadside flowers or plants exposed to contaminated runoff.
• Use the petals rather than leaves or stems.
• Inspect carefully for insects.
• Rinse gently where appropriate.
• Discard flowers showing mould, slime or deterioration.
• Introduce unfamiliar edible flowers in small culinary quantities.

Harvest & Storage

Geranium petals are best harvested close to when they will be used.

For short-term storage:

1. Harvest clean, dry flowers.
2. Remove damaged material.
3. Separate the petals if desired.
4. Place them in a clean container.
5. Refrigerate promptly.
6. Protect from crushing.
7. Avoid excessive free moisture.
8. Use while fresh and visually appealing.