How Late Can Watermelon be Planted in NH?

If you're a watermelon enthusiast living in New Hampshire, it's important to know the best time to plant this juicy and refreshing fruit. Aggressive planting can result in suboptimal growth and undesirable outcomes. So, how late can watermelon be planted in NH?

The Best Time to Plant Watermelon in NH

The best time to plant watermelon in New Hampshire is in mid to late spring, between late May and early June. This timing ensures that the soil temperature is warm enough to stimulate germination, and the days are long enough to give the plants the sunlight they need to grow strong.

Planting any later than this can result in a shortened growing season, which can, in turn, reduce the fruit yield or size. If you want to plant watermelon later than late May or early June, make sure to choose varieties that have a shorter growing season, such as Sugar Baby or Blacktail Mountain.

The Risks of Late Planting

If you choose to plant watermelon after the recommended period, several risks can arise. First, the soil temperature might be too low to stimulate the seeds to germinate. Second, a shorter growing season due to late planting can result in smaller fruit sizes, which is not ideal for watermelon enthusiasts looking for that perfect slice.

Additionally, late planting can make the plants more susceptible to diseases and pests. Late-season planting shortens the amount of time that the plants have to reach maturity, making them more vulnerable to environmental stressors and susceptible to being overrun by pests and diseases.

How to Plant Watermelon in NH

When you decide to plant watermelon, it's essential to start by selecting a suitable site. The most favorable conditions for planting watermelon in New Hampshire include well-drained, fertile soil that receives full sunlight. Once you have identified the ideal site, prepare the soil by tilling and adding compost, manure or organic matter to create a nutrient-rich environment.

Next, create a mound or raised bed with an internal diameter of at least three feet. This allows for proper drainage and air circulation around the plants, reducing the risk of root rot and other disease-causing organisms. Plant the seeds at a depth of 1 inch, and be sure to plant them about three feet apart.

Finally, water your seedlings consistently, giving them at least an inch of water per week. Don't water them too much, though- over-saturating the soil can lead to root rot and fungal infections. You may also want to consider mulching around the base of the plants to retain moisture and keep the roots cool during hot spells.

In Conclusion

Watermelon is a delicious and refreshing fruit that's easy to grow in New Hampshire during the optimal planting season of late May to early June. However, if you must plant later than this, consider growing shorter-season varieties that are more likely to achieve full maturity. Regardless of when you plant, be mindful of the risks of late planting and the measures you can take to maximize your yield and minimize the impact of environmental stressors.