Updated: July 18, 2023

Watermelon, with its juicy and refreshing taste, is a favorite fruit of many during the hot summer months. Its vibrant green exterior and sweet, red flesh make it a popular choice for picnics, barbecues, and other outdoor gatherings. But have you ever wondered how quickly a watermelon plant grows? In this article, we will explore the growth stages of a watermelon plant and discover just how fast it can go from seed to fruit.

Germination Stage

The first stage in the growth of a watermelon plant is germination. Germination occurs when the seed absorbs water and begins to sprout. Watermelon seeds are relatively large, about the size of a sunflower seed, and have a hard outer shell that protects the embryo inside.

To promote germination, it is essential to provide the seeds with adequate moisture, warmth, and oxygen. Planting watermelon seeds in well-draining soil at a depth of 1-2 inches is recommended. Once planted, the seeds will typically germinate within 7-10 days under optimal conditions.

Seedling Stage

After germination, the watermelon seeds will begin to grow into seedlings. During this stage, the seedling will develop its first set of true leaves and establish its root system. The true leaves are different from the initial cotyledon leaves that emerge during germination.

The seedling stage usually lasts for about 2-3 weeks. During this time, it is crucial to provide the young plants with plenty of sunlight or artificial light if grown indoors. Adequate watering and proper nutrition through balanced fertilizers will also help support healthy growth.

Vegetative Stage

Once the seedlings have established themselves, they enter the vegetative stage. This stage is characterized by rapid leaf production and overall plant growth. The watermelon plant will continue to develop new leaves and expand its root system to support its increasing size.

During the vegetative stage, it is essential to provide the watermelon plant with optimal growing conditions. This includes providing it with plenty of sunlight, regular watering, and well-draining soil. The use of organic fertilizers rich in nitrogen can also help promote healthy leaf growth.

The duration of the vegetative stage can vary depending on various factors such as the watermelon variety, growing conditions, and the presence of any stressors or diseases. On average, this stage lasts for about 3-4 weeks.

Flowering Stage

As the watermelon plant continues to grow, it will eventually reach the flowering stage. This stage is a critical milestone in the plant’s growth as it marks the beginning of fruit development. Watermelon plants produce both male and female flowers on the same vine.

Male flowers typically appear first and serve to attract pollinators such as bees and butterflies. Female flowers follow shortly after and contain the ovaries that will develop into fruit if successfully pollinated. It is essential to have a healthy population of pollinators or manually transfer pollen from male to female flowers to ensure successful fruit set.

The flowering stage typically lasts for about 1-2 weeks. During this time, it is crucial to provide the watermelon plant with adequate water and nutrients to support fruit development.

Fruit Development Stage

Once the watermelon plant has been successfully pollinated, the ovaries will begin to develop into fruit. At this stage, the plant’s energy is primarily directed towards fruit growth and maturation. The watermelon fruits will start small and gradually increase in size over time.

The duration of fruit development can vary depending on factors such as temperature, water availability, and watermelon variety. On average, it takes about 30-45 days for a watermelon fruit to reach full maturity from pollination.

During the fruit development stage, it is essential to continue providing the watermelon plant with regular watering and proper nutrition. Mulching around the base of the plant can help retain moisture and regulate soil temperature, promoting optimal fruit development.

Harvesting

The final stage in the growth of a watermelon plant is harvesting. This is the moment when all the hard work and patience pay off. Determining when to harvest watermelons can be a bit tricky as it requires careful observation of several factors.

One indicator of ripeness is the color of the watermelon’s skin. For most varieties, a ripe watermelon will have a deep green or dull skin color. The underside of the fruit (where it rests on the ground) should have turned from white or light green to yellowish or creamy.

Another sign of ripeness is the sound produced when tapping the watermelon. A ripe watermelon will produce a deep, hollow sound, while an under-ripe one will sound dull.

Finally, checking the tendril closest to the fruit’s stem can provide additional information about ripeness. If the tendril has dried up or turned brown, it is likely that the watermelon is ready to be harvested.

Conclusion

Watermelon plants go through several stages of growth, from germination to fruit development. The duration of each stage can vary depending on various factors such as variety, growing conditions, and care provided. On average, it takes around 70-90 days for a watermelon plant to go from seed to fruit.

By understanding these growth stages and providing the necessary care, you can enjoy the taste of homegrown watermelons in your garden or even in containers on your balcony. So, why not give it a try and experience the joy of growing your own delicious watermelons?