New Hampshire Vegetable Planting Calendar (NH): Month-wise Chart, Guide, and Schedule for Zone 3, Zone 4, Zone 5, and Zone 6

It is possible to have a successful garden with little money, effort, or expertise if you plan and take care of your plants. Your garden can be as simple or elaborate as your imagination allows. It can fulfill various purposes, from decorating your home to providing nutritious food for your family. However, you’ll need a planting schedule before you can start planning your garden. Below we learn the New Hampshire vegetable planting calendar, month-by-month vegetable planting chart, and seasonal planting guide for New Hampshire vegetables. 

New Hampshire vegetable planting calendar (NH)

New Hampshire planting zones 

The climate of New Hampshire is humid continental, with extreme seasonal and even daily temperature swings. In most planting zones, precipitation is steady and equal throughout the year. The summers are brief, reasonably temperate, and humid, while the winters are lengthy, cold, and snowy. Because of the ocean, the winters in the southeast are warmer than those in the interior and the north, which see lower temperatures and more snow.

The middle 60s is a normal summer temperature. One of the criteria used to create the hardiness zone map in the United States is the average date of the first frost. Depending on the local climate and other conditions, some locations are classified as “growing zones,” where certain plants and flowers thrive. When gardening in New Hampshire, it is important to know your planting zone.

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Climate zones 3b-6a cover the whole state of New Hampshire. Planting anywhere in the zone where the plant will thrive or below is generally safe. A plant’s ability to endure the local winters depends on this. If you live in a colder climate, it’s best to avoid planting anything that requires a warmer hardiness zone. Discover what planting zone you are in by using an online map of the hardiness zones.

Numerous flowering plants and edible foods flourish in New Hampshire’s climate. New Hampshire has many potential sites for planting a garden of any kind. Vegetables like basil, broccoli, cabbage, carrots, parsnips, onions, peas, and peppers do particularly well in New Hampshire. Some plants and flowers that flourish well in the region are hobblebushes, rhododendrons, royal azaleas, climbing hydrangeas, and star magnolias.

New Hampshire’s last frost date 

In most of New Hampshire, the final frost dates are between May 16 and 31. From the first through the fifteenth of May, the southern region of New Hampshire has its last frost. Dates for the last frost in isolated areas of northern and western New Hampshire range from the 1st to the 30th of June. Dates for the first frost in New Hampshire range from September 1 to September 30. These dates help you with your New Hampshire vegetable gardening.

Best vegetables to grow in New Hampshire

Growing zones of New Hampshire are ideal for a wide variety of vegetable crops, including but not limited to basil, carrots, parsnips, cabbage, broccoli, onions, peas, and peppers. 

When should I plant tomato seeds in NH?

The seed package is one of the greatest places to look for information regarding indoor seed starting. There is a wealth of information on when to start seeds indoors, how deep to plant them, what soil temperature is best for germination, how far apart to plant them, and how many days until the last frost is printed on the label of every packet of seed. In late May, the final frost usually occurs in Zone 5, which includes most of New Hampshire. That means you can start planning to put your fragile flowers and veggies in the ground after Memorial Day.

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Although this isn’t an ironclad rule, long-range projections should always be considered. If you wish to grow your tomatoes, the instructions on the box will tell you to bring the seeds indoors and germinate them between six and eight weeks before the final frost. To have your flowers and veggies ready to be transplanted into the garden by May 27th, you must begin sowing them between April 1st and April 15th. Cultivating cucumbers four to six weeks before the planting date is possible, although peppers and eggplant may need at least ten weeks to be spent inside.

Will sweet potatoes grow in NH?

The sweet potato needs 90-120 days without frost to mature and give a harvest. Plants and their roots are especially vulnerable to cold temperatures. They thrive when planted in soil with a temperature of at least 65 degrees Fahrenheit. When growing sweet potatoes, you want to ensure the soil is well-drained and not too rich. Fast leaf development and long, thin roots are the results of over-fertilization. Growing plants in thick clay soils can cause them to have abnormally short or distorted roots that are difficult to extract.

If there are any significant nutritional deficits, a soil test will reveal these. The sweet potato is grown from plants called “slips” rather than root cuttings. A variety of seed banks and nurseries sell slips. While grocery store roots are not often labeled by variety, you can start your slips and know exactly what you’re working with. Put sweet potato roots on their side in trays of soil 6-8 weeks before you want to transplant them outdoors to create your slips.

The roots should be covered with two inches of wet sand, and the trays should be kept at a temperature of 75 to 80 degrees Fahrenheit. When the sprouts reach 4 to 6 inches, please give them a twisting pull to get rid of them. Even additional shoots will emerge from the root. The sprouts may either be planted straight into the ground that has been adequately prepared, or they can be placed in a water jar for a few days to develop a rooted slip and to postpone planting.

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When ordering slips, you will be asked to pick a ship date. By the first of June, soil temperatures beneath black plastic mulch usually reach 65 degrees Fahrenheit. You may want to push back the planting date by a couple of weeks if your location is colder than average or if you’re not utilizing plastic mulch. Rows of slips should be separated by 3 to 6 feet. Many potential root or shoot nodes can be found on a typical slip. You should put at least two or three nodes below the soil while keeping the growth point above ground.

When to plant carrots in New Hampshire?

Carrot seeds need to be consistently watered, maintained in a warm environment with a minimum temperature of 70 degrees Fahrenheit, and exposed to direct sunshine for at least eight hours daily. So they won’t germinate unless you water them regularly. They won’t grow unless kept at a temperature of at least 70 degrees Fahrenheit. Also, the plant won’t flourish even if exposed to sunshine for 8 hours daily. 

Due to the state’s short growing season, carrot seeds must be sown inside New Hampshire. Carrots grown from seed can be transplanted into a garden after around 40-60 days (6-8 weeks), depending on the variety. Use a heating pad to keep the gardening pot at about 70 degrees Fahrenheit.

A grow lamp can help you regulate the amount of light your carrot seeds get. Using a spray bottle to provide water to your seeds can help prevent them from becoming too wet. Remember that you shouldn’t put your carrot seedlings out into the garden until at least two weeks after the last frost, or they may not survive or produce carrots.

When to plant potatoes in NH?

For growing potatoes, the latest frost date is more important than the month. You should plant your potatoes around two to three weeks before the date of your area’s last frost or when the soil temperature reaches 45 degrees Fahrenheit or above. If your potatoes sprout and a frost are predicted, you should shield them from the cold with a frost blanket. Depending on the cultivar, growing potatoes might take anywhere from 60 to 120 days.

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Once the tubers have formed, the potatoes are ready to be harvested and used. It takes around 60–90 days to grow new potatoes and another 80–120 days to get them to maturity. Whether you use potatoes from the grocery store or your garden, sprouting them is a breeze. The potatoes need to be kept in a warm, humid, and dry location where the temperature is above 60 degrees. The optimal temperature for potato sprouting is 70 degrees Fahrenheit. If you leave your potatoes alone for a few weeks and then check on them, you will see that they have sprouted.

Once the potato plants become completely yellow and die back, you know it’s time to harvest. Once the plant has died, the potatoes can be harvested and cured in a dark, cool spot. After the plant has died completely, the potatoes should not be left in the ground for more than a week. Doing so increases the odds of the tubers decaying and being consumed by animals. Even if the size and taste of the potatoes you harvest before completely die back won’t be quite right, you can still get a good crop out of them.

When to plant vegetables in New Hampshire?

If you want to stay on the side of caution, you should consider Memorial Day to be the last day that the central region of New Hampshire will see frost. Mark the present date on a calendar, then count backward from that point to establish the number of weeks that have transpired since the seed was first sown. This is the day when you will start the process of planting your seeds in the ground.

When should I start seeds in Zone 5?

The growing season in Zone 5 is shorter than in warmer regions. That doesn’t mean you can’t harvest abundantly; you must pay close attention to the “days to maturity” information on your seed packages. On the other hand, melons, tomatoes, and eggplant need warm soil and bright, sunny circumstances to sprout, making it impossible to begin growing them in the early spring while external temperatures are still low.

When is the best time to sow seeds in zone 5 to ensure a bountiful harvest? On May 30th, there is no longer a possibility of frost, although it may still be cold. This implies you must prepare ahead and start your plants early enough that they can finish developing before late October. Many gardeners in northern latitudes utilize transplants, which they plant in the ground at the end of May, while others use greenhouses. The last day to start seeds indoors in Zone 5 is May 30. The 30th of May is a rough estimate.

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If you live in a very windy or mountainous region, or if you often experience late-season frost, you should delay planting. A wealth of information, including optimal planting periods for your area, is printed on seed packs. According to the seed company, these are the optimal dates to grow various types of produce. These tips will help you plan when to grow seeds in Zone 5. As crucial as planting seeds in well-prepared soil, it is just as crucial to properly prepare the soil by adding enough organic material and eliminating obstacles before planting.

When should I start onion seeds indoors in Zone 5?

Once you know your latest frost date, you can plant onions and garlic. Before the season’s first frost, you can grow shallots and garlic outside in the garden. More light, between 12 and 16 hours a day, is required for root crops, and larger pots are recommended. Plants can be grown in containers such as pots or buckets with the help of supplemental lighting.

Indoor planting of onion and garlic seeds in January or February will provide a long enough growing season for the plants to develop in a Zone 5 garden. When compared to warm-season crops, cool-season ones are grown for a longer length of time and harvested later. They can withstand colder temperatures than other plants.

New Hampshire vegetable planting guide/calendar/chart/schedule

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Conclusion 

Several veggies need to be harvested on a daily or bi-daily basis. Crops, including summer squash, tomatoes, beans, peas, and cucumbers, should be picked often. Plants will produce less if you don’t harvest enough to meet their needs. Leaving mature vegetables in the garden runs the danger of having animals get into them, contaminating them and making them unfit for human consumption.

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