Did you know that Bells of Ireland are the symbol of Saint Patrick’s Day? Their green color, combined with small white flowers, symbolizes good health, luck, and happiness.
Scientifically known as Moluccella laevis, Bells of Ireland, also referred to as shellflowers, are striking plants that grow to heights of 24 to 36 inches.
Blooming from late spring to early summer, they grace gardens with their unique charm. Their flowers are tiny and inconspicuous, nestled within vibrant green, cup-shaped bracts.
Native to western Asia and the eastern Mediterranean, Bells of Ireland thrive in full sun and well-drained soil. This annual plant is hardy in zones 8 to 10.
Bells of Ireland offer enduring visual allure, enhancing landscapes with their unique charm. In floral arrangements, whether fresh or dried, their distinctive shape and color add texture and intrigue.
Symbolizing good luck and prosperity, they are cherished additions to celebratory bouquets, embodying hope and fortune. Moreover, they attract essential pollinators like bees and butterflies, fostering biodiversity.
These flowers are popular at weddings. Imagine you take bells of Ireland flowers and enter your wedding ceremony. There’s nothing better than holding the bouquet grown in your garden.
Propagation (From Seeds)
Collect seeds from mature plants in late summer to early fall when the flowers have dried and turned brown.
Gently shake or tap the dried flower heads over a container to release the seeds. Store the seeds in a cool, dry place until you are ready to plant them.
Growing Bells of Ireland
Preparation
Select a site that receives direct sunlight daily. Amend heavy clay soils with compost or sand to improve drainage.
Incorporate organic matter such as compost or well-rotted manure into the top 6-8 inches of soil.
To improve germination rates, lightly scarify the seeds by rubbing them between two pieces of sandpaper.
Cold stratify the seeds by placing them in a damp paper towel, sealing them in a plastic bag, and refrigerating them for 1-2 weeks.
Starting Seeds Indoors
Start seeds indoors 8-10 weeks before the last expected frost date. Use seed trays or small pots filled with a sterile, well-draining seed starting mix.
Sow the seeds on the surface of the soil and lightly press them in. Do not cover them heavily as they need light to germinate.
Keep the soil consistently moist but not waterlogged. Use a spray bottle to mist the soil surface gently.
Place the seed trays in a location with bright, indirect light. Maintain a temperature of 65-70°F (18-21°C) for optimal germination.
Transplanting Seedlings
About 1-2 weeks before transplanting outdoors, start hardening off the seedlings by gradually exposing them to outdoor conditions.
Transplant the seedlings outdoors after all danger of frost has passed and the soil has warmed. Space the seedlings about 12-18 inches apart.
Tips: To maximize productivity, pair Bells of Ireland with companion plants like marigolds and basil for natural pest control.
Care for Bells of Ireland
Here are the main care requirements for growing Bells of Ireland successfully:
- Thrive in well-drained, moderately fertile soil neutral pH of 6.0 to 7.0.
- Prefer full sun (6-8 hours per day).
- Apply 1 inch of water per week.
- Thrive in USDA zones 2-11.
- Apply a balanced, water-soluble fertilizer (10-10-10) every 4 to 6 weeks.
- Regularly deadhead spent flowers.
Light
Bells of Ireland thrive best in full sun, needing at least six hours of direct sunlight daily. In hotter climates, they can tolerate partial shade to prevent leaf scorch.
In shady locations, the plants may become leggy and require staking for support to maintain upright growth.
Soil
This plant thrives in well-drained, moderately fertile soil with a slightly acidic to neutral pH (6.0 to 7.0).
Amending the soil with compost or organic matter enhances fertility and drainage, providing an optimal environment for healthy growth and vibrant blooms.
Water
Keep Bells of Ireland consistently moist, especially during the seedling and transplant stages. Use soaker hoses to avoid water-logging, providing about 1 inch of water per week.
Temperature and Humidity
Bells of Ireland prefer cooler temperatures and can tolerate light frosts, thriving in USDA zones 2-11. They benefit from good air circulation to prevent humidity-related diseases.
While they enjoy cooler climates, they can still perform well if protected from extreme heat and excessive humidity.
Mulch
Apply a 2-3 inch layer of organic mulch, such as straw, compost, or wood chips, around Bells of Ireland.
Mulching helps retain soil moisture, suppress weeds, and regulate soil temperature. Ensure the mulch is kept away from the stems to prevent rot and promote healthy growth.
Pruning and Deadheading
The best time to prune is early spring, just before the growth surge. Cutting stems back by one-third to promote a bushier plant structure.
In late fall, cut back the stems to the base at a 45-degree angle to prepare the plant for the next growing season.
Fertilizer
Apply a balanced, water-soluble fertilizer (10-10-10) every 4 to 6 weeks during the growing season.
This regular feeding provides essential nutrients, promoting healthy growth and abundant blooms.
Ensure even application and avoid over-fertilizing to prevent excessive foliage growth at the expense of flowers.
Pests and Diseases
Aphids and spider mites suck sap from the plants, causing distorted growth and yellowing leaves, while slugs chew irregular holes in the foliage.
Control these pests with insecticidal soap, miticides, or organic slug baits.
Besides, powdery mildew appears as a white coating on leaves, and root rot causes wilting from waterlogged soil. Leaf spot presents dark spots on leaves, and botrytis blight creates gray mold.
Prevent these diseases by ensuring good air circulation, avoiding overhead watering, and using fungicides when necessary.
Common Problems
Poor Germination
Bells of Ireland seeds sometimes have low germination rates. To improve germination, stratify the seeds by chilling them in the refrigerator for a week before planting.
Flopping Stems
The tall, thin stems of Bells of Ireland can become leggy and flop over, especially in shady locations.
Provide full sun exposure and use stakes or supports if necessary to keep them upright.
Yellowing Leaves
Yellowing leaves can be a sign of overwatering or poor drainage. Ensure the soil is well-drained and reduce watering if the soil remains consistently wet to prevent root rot.
Poor Flowering
Insufficient sunlight and excessive fertilization can lead to poor flowering. Ensure the plants receive full sun and avoid over-fertilizing, which can result in lush foliage but fewer flowers.
Harvest
Harvest Bells of Ireland in the summer to early fall, cut stems early in the morning at a 45-degree angle above a leaf node.
Immediately place them in lukewarm water and remove any submerged leaves. Fresh Bells of Ireland can last up to two weeks in arrangements.
Preservation
Cut the stems when flowers are fully open. Strip the leaves, bundle the stems, and hang them upside down in a dark, ventilated area for 2-3 weeks.
Tips: Spray paint stems gold or silver to make your arrangements interesting.
Growing Bells of Ireland brings joy and new experiences. Try it today and enjoy the beauty and charm these flowers bring to your garden!