Updated: July 5, 2023

Lilies are beautiful flowering plants that are popular among garden enthusiasts for their vibrant colors and elegant appearance. They come in a wide variety of species and cultivars, each with its own unique growth rate. In this article, we will explore the average growth rate of lily plants and factors that can influence their growth.

Understanding Lily Growth Phases

To understand the growth rate of lily plants, it is important to be familiar with their growth phases. A typical lily plant goes through four main stages of growth:

  1. Germination: This is the initial stage where the lily bulb sprouts and sends out roots into the soil. It usually takes around 2-3 weeks for the bulb to germinate.

  2. Vegetative Growth: Once the bulb has successfully germinated, the lily plant starts producing foliage. During this phase, the plant focuses on developing strong stems and leaves. Vegetative growth can take anywhere from 4-6 weeks.

  3. Bud Formation: After the vegetative growth phase, lily plants enter the bud formation stage. This is when flower buds start to form at the top of each stem. The duration of this phase varies depending on the lily species or cultivar but typically lasts for 2-3 weeks.

  4. Flowering: The final and most anticipated stage is when the lily plant blooms into beautiful flowers. The flowering period can range from a few days to several weeks, again depending on the specific lily variety.

Factors Affecting Lily Plant Growth Rate

Several factors can influence how quickly a lily plant grows. Understanding these factors can help gardeners optimize their growing conditions for better results. Here are some key factors to consider:

1. Climate and Location

The climate and location where lilies are grown play a significant role in their growth rate. Lilies thrive in temperate regions with mild summers and cool winters. They prefer well-drained soil enriched with organic matter. If the growing conditions are not suitable, the growth rate of lilies may be slower.

2. Sunlight

Lilies are sun-loving plants that require ample sunlight to grow and bloom successfully. They typically need at least 6-8 hours of direct sunlight per day. Insufficient sunlight can lead to stunted growth and delayed flowering.

3. Soil Quality

The quality of the soil directly affects the growth rate of lily plants. Well-draining soil that is rich in nutrients promotes healthy root development and overall growth. Adding organic matter, such as compost or well-rotted manure, can improve soil fertility and enhance the growth rate of lilies.

4. Watering and Moisture

Proper watering is crucial for lily plant growth. While lilies require regular watering, it is essential not to overwater them, as excessive moisture can cause bulb rot and hinder growth. Watering should be done when the top inch of soil feels dry, ensuring the roots receive enough moisture without becoming waterlogged.

5. Fertilization

Applying a balanced fertilizer during the growing season can significantly boost the growth rate of lilies. The fertilizer should contain a balanced ratio of nitrogen, phosphorus, and potassium (NPK). However, it is important to follow the recommended dosage to avoid over-fertilization, which can damage the plants.

Average Growth Rate of Common Lily Varieties

While the growth rate may vary depending on various factors, here is an overview of the average growth rate for some common lily varieties:

  1. Asiatic Lilies: These lilies are known for their early flowering and fast growth rate. From bulb planting to the emergence of flowers, it typically takes around 70-90 days.

  2. Oriental Lilies: Oriental lilies are known for their large and fragrant flowers. They generally have a longer growth period compared to Asiatic lilies, with an average time of 90-120 days from planting to flowering.

  3. Trumpet Lilies: Trumpet lilies have stunning, trumpet-shaped flowers. They have a slightly slower growth rate compared to Asiatic and Oriental lilies, taking around 100-130 days from bulb planting to flowering.

  4. Daylilies: Daylilies are unique in that each flower lasts only one day but is quickly replaced by new blooms. They have a relatively fast growth rate, with flowers appearing within 60-90 days from planting.

It is important to note that these are general guidelines, and the specific growth rate can vary depending on the growing conditions and individual cultivars.

Tips for Accelerating Lily Plant Growth

If you want to accelerate the growth rate of your lily plants, here are a few tips to consider:

  1. Choose fast-growing varieties: Some lily cultivars are known for their rapid growth. Research and select varieties that are specifically bred for faster growth if you want quicker results.

  2. Provide optimal growing conditions: Ensure your lily plants receive ample sunlight, well-drained soil, and regular watering. Maintaining ideal conditions will promote healthy growth.

  3. Use fertilizers strategically: Applying a slow-release fertilizer at the beginning of the growing season can provide a steady supply of nutrients throughout the plant’s growth stages.

  4. Mulch to retain moisture: Adding a layer of organic mulch around the base of lily plants helps retain moisture in the soil, preventing water loss and promoting faster growth.

  5. Remove faded flowers: Deadheading or removing faded flowers can redirect energy towards new bud formation, encouraging continuous blooming and overall faster growth.

In conclusion, the speed at which lily plants grow can vary depending on various factors such as species, climate, and growing conditions. By understanding their growth phases, optimizing growing conditions, and providing proper care, gardeners can help accelerate the growth rate of lily plants and enjoy their beautiful blooms in a shorter time frame.