The Plumeria Troubleshooting Guide helps you quickly identify and resolve common issues such as yellowing leaves, poor blooming, pests, and root problems—ensuring your plumeria stays healthy and beautiful year-round.
About The Plumeria | Beginners Guide | History and Culture Guide | Articles and Inspiration
How can I encourage Plumeria flowers to be larger in size?
How to Encourage Larger Flower Size in Plumeria
Achieving larger, more robust flowers on your Plumeria is an objective that can be attained through a combination of proper care, favorable environmental conditions, and timely intervention. Here is a comprehensive guide on how to encourage Plumeria flowers to grow larger:
Soil Quality
High-quality soil is foundational for plant growth. For Plumeria, well-draining soil rich in organic matter is essential. Periodic soil tests can also help you identify any nutrient deficiencies that may need correcting.
Balanced Fertilizer
To promote larger flowers, use a balanced, slow-release fertilizer with micronutrients. Fertilizers with a balanced ratio of nitrogen, phosphorus, and potassium can encourage healthier, more abundant blooms. Over-fertilization, especially with high-phosphorus “bloom booster” fertilizers, should be avoided as it may create nutrient imbalances.
Temperature
Ideal temperatures for Plumeria range between 65-90°F (18-32°C). Extreme temperatures can stunt growth and inhibit blooming. Maintaining the plant within this temperature range can result in healthier and potentially larger flowers.
Watering
Consistent watering is key, but overwatering can lead to root rot and other diseases. A moderate watering regimen that allows the soil to dry out slightly between waterings is beneficial for flower size.
Sunlight
Plumeria requires at least 6 hours of direct sunlight for optimum growth and flower development. Plants receiving inadequate sunlight may produce smaller, less vibrant flowers.
Pruning
Strategic pruning can help channel the plant’s energy into flower production. Removing dead or unhealthy branches not only improves the appearance but also promotes better air circulation and nutrient distribution, ultimately affecting flower size.
Pest and Disease Management
Regular inspection and timely treatment for pests like spider mites, whiteflies, and diseases like rust and black tip can go a long way in maintaining plant health, which in turn can encourage larger flowers.
Plant Growth Regulators
Use of plant growth regulators like gibberellic acid has shown some effectiveness in increasing flower size, although this is more common in commercial applications. Exercise caution and consult expert advice before proceeding with this method.