Unveiling the Enchanting Calla Lily: A Comprehensive Guide to Growing from Bulbs

Introduction

The calla lily, with its elegant trumpet-shaped blooms and lush foliage, is a cherished addition to any garden. Grown from bulbs, these captivating plants offer a touch of sophistication and grace to outdoor spaces. This comprehensive guide will delve into the intricacies of growing calla lilies from bulbs, providing you with the knowledge and techniques to cultivate these magnificent flowers successfully.

Choosing and Purchasing Calla Lily Bulbs

Variety Selection

Calla lilies come in an array of captivating colours, including white, pink, yellow, orange, and purple. Some popular varieties include:

• Calla Zantedeschia ‘Captain Chelsey’: Large, deep purple blooms
• Calla Zantedeschia ‘Black Pearl’: Near-black flowers
• Calla Zantedeschia ‘Creamsicle’: Soft yellow and pink blooms
• Calla Zantedeschia ‘Pink Wonder’: Bright pink flowers

Bulb Quality

Choose healthy, firm bulbs without any visible blemishes or damage. Larger bulbs will produce larger flowers. Discard any bulbs that are mushy or soft.

Planting Calla Lily Bulbs

Planting Time

Plant calla lily bulbs in spring, after the last frost date, when the soil has warmed up to at least 10°C (50°F).

Soil Preparation

Calla lilies prefer well-drained, fertile soil. Amend the soil with compost or peat moss to improve drainage and fertility.

Planting Depth and Spacing

Plant bulbs 5 to 8 cm (2 to 3 inches) deep, pointed side up. Space them 15 to 20 cm (6 to 8 inches) apart.

Care and Maintenance

Watering

Water calla lilies regularly, especially during the growing season. Avoid overwatering, as it can lead to root rot.

Fertilising

Fertilise calla lilies monthly during the growing season with a balanced fertiliser.

Support

As calla lilies grow, provide support to prevent them from toppling over. Use stakes or cages to support the flower stalks.

Deadheading

Deadhead spent flowers to encourage new blooms and prevent seed production.

Overwintering Calla Lily Bulbs

Calla lilies are not winter hardy in most climates. In areas with freezing winters, dig up the bulbs in autumn and store them in a cool, dry place over winter.

Digging Up Bulbs

Allow the foliage to yellow and die back naturally before digging up the bulbs. Dig carefully to avoid damaging the bulbs.

Bulb Storage

Store the bulbs in a mesh bag or open box, where they will have good air circulation. Keep them in a cool, dark place with temperatures between 10°C and 15°C (50°F and 59°F).

Troubleshooting

Yellowing or Browned Leaves

Overwatering or poor drainage can cause yellowing or browned leaves. Adjust watering frequency and improve drainage.

Stunted Growth or Lack of Flowering

Insufficient light, improper soil pH, or lack of nutrients can lead to stunted growth or lack of flowering. Ensure plants are getting enough sunlight, adjust soil pH if necessary, and fertilise regularly.

Conclusion

Growing calla lilies from bulbs is a rewarding experience, adding elegance and beauty to any garden. By following the steps outlined in this comprehensive guide, you can successfully cultivate these captivating plants and enjoy their enchanting blooms season after season.