Geraniums are a fantastic addition to any garden, offering long-lasting flowers and attractive foliage. Whether you’re growing hardy perennial geraniums (also known as cranesbills) or tender pelargoniums, this guide will help you keep them thriving.
1. Choosing the Right Spot
- Hardy Geraniums (e.g., Geranium phaeum, Geranium Rozanne) thrive in full sun to partial shade and prefer well-drained soil.
- Pelargoniums (often called bedding geraniums) need full sun and sheltered spots, making them ideal for pots and hanging baskets.
2. Soil and Planting
- Hardy geraniums enjoy moist but well-draining soil, enriched with organic matter like compost or leaf mold.
- Pelargoniums prefer light, well-drained soil—a mix of compost and perlite works well in containers.
- When planting, space them 30–50 cm apart to allow good air circulation.
3. Watering Needs
- Hardy geraniums: Water regularly during dry spells, but avoid waterlogging.
- Pelargoniums: Allow the soil to dry slightly between waterings. Overwatering can lead to root rot.
4. Feeding for Better Growth
- Apply a general-purpose fertilizer in spring to boost flowering.
- For pelargoniums, a high-potassium feed (like tomato feed) every two weeks during summer encourages more blooms.
5. Pruning and Deadheading
- Hardy geraniums: After flowering, cut back spent blooms and trim foliage to encourage a second flush of flowers.
- Pelargoniums: Regular deadheading keeps plants looking tidy and promotes continuous flowering.
6. Overwintering
- Hardy geraniums: Generally survive winter with minimal care. A layer of mulch helps protect roots in very cold areas.
- Pelargoniums: Being tender, they should be brought indoors or placed in a greenhouse before the first frost.
7. Common Pests and Diseases
- Aphids & Whiteflies: Can affect pelargoniums—spray with insecticidal soap if needed.
- Powdery Mildew: Affects hardy geraniums in humid conditions—improve air circulation and avoid overhead watering.
8. Propagation Tips
- Hardy geraniums can be divided in early spring or autumn to create new plants.
- Pelargoniums root easily from stem cuttings taken in late summer.
Conclusion
Geraniums are low-maintenance, rewarding plants that bring color and texture to gardens and containers. With the right care, they will bloom beautifully throughout the season!
Some of my Geraniums here
