When Can I Start Growing American Marigold Seeds In Massachusetts In A Greenhouse - Krostrade

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When Can I Start Growing American Marigold Seeds In Massachusetts In A Greenhouse

When can I start growing American marigold seeds in Massachusetts in a greenhouse? This is a question that you must determine before sowing seeds, but the answer is as simple as marking your calendar eight weeks before the last frost. On the other hand, you can plant the seeds after the frost if you’re not using a greenhouse and want to cultivate it outdoors. 

But how does one determine the frost date of Massachusetts? Regardless of your state, every greenhouse grower must know the hardiness zone of their location. Massachusetts is in zones 5a to 7a, and you can use this to mark your calendar and determine the frost date.

When Can I Start Growing American Marigold Seeds In Massachusetts In A Greenhouse

American marigolds will thrive in Massachusetts since it is hardy for zones 3 to 11. These gorgeous flowers bloom in spring, summer, and fall, and are native to Mexico and Central America. They also go by the name African marigolds and Mexican marigolds, and you can distinguish them from being the tallest and most upright marigold. 


When Can I Start Growing American Marigold Seeds In Massachusetts In A Greenhouse: Calendar For Planting

You can start your marigold seeds indoors in Massachusetts before the last frost date. This can be eight weeks before or fifty days before. According to the University of Massachusetts Amherst, most areas in the state have their last frost date on May 15. 


Eight weeks before the last frost date

As mentioned previously, planting American marigold seeds in the greenhouse is best to do eight weeks before the last frost. Using the hardiness zone of your area in Massachusetts, you can determine this exact date. However, the time will be different if you are planting outdoors since it will be after frost and usually in spring. 

In general, the Massachusetts Master Gardener Association also recommends starting your seeds on the date counted away from the last frost date of your area. Marigolds are best to start indoors so you can get an earlier bloom. However, these plants have a short period from seeding to blooming anyway, and that’s why it’s possible to sow them after the danger of frost outdoors. 

Using the greenhouse is more strategic for gardeners, mainly because it allows you to safely start the flowers indoors. You can remember that the majority of areas in Massachusetts get their last frost at around May 15. Keeping this in mind, you can count back the number of weeks from when you want to transplant the marigolds into the greenhouse 


Fifty days before the last frost date

If you have started your marigolds around 50 days before the last frost date, this will prepare them well for mid-spring planting. Doing so, your plants will be at the right size without the need to worry about the challenges of the outdoor climate. You don’t even have to wait long for the seedlings to germinate.

Once this happens, remember to ensure that the plants get 6 hours of light per day. You can then thin the seedlings once you see the second set of leaves. Transplant them in their pot while waiting for the last frost date inside the greenhouse. 


Other Considerations For Growing American Marigold In A Greenhouse

After finding the answer to when I can start growing America marigold seeds in Massachusetts in a greenhouse, the success of your flowers will depend on other conditions. For example, seed germination will happen in as early as 4 to 14 days. However, this depends on the soil temperature, which should be between 70 to 75°F and indoor temperatures at 65 to 75°F.

Inside the greenhouse, you must use a warm and moist flower bed for sowing the seeds. After planting, you can expect the marigolds to bloom in 50 days until frost. Add organic matter to the soil and check the soil pH as it should be at 6.0 to 7.0. For the spacing, large varieties should be apart at 24 inches, 15 inches for medium types, and 6 inches for dwarf marigolds. 


What Makes American Marigolds Different From Other Marigolds?

Compared to other marigolds, you’ll notice that American ones are best planted in the spring. This is because they mature more slowly than French marigolds, for example. These tall flowers can act as planting pockets, or you can add them in front of shrubs to add some color in the garden. 

American marigolds will surely stand out as center or rear attraction in beds and borders. Some gardeners grow American marigolds to create a hedge around their herb garden as well. But what are the best varieties to cultivate? 

The popular ones include Antigua Series, Jubilee Series, and Vanilla. For hedges, Gold Coin Series American marigolds are excellent. 



Massachusetts is an excellent state for growing flowers. One of the common ones you’ll find are American marigolds, which can inspire you to question, “when can I start growing American marigold seeds in Massachusetts in a greenhouse?” You can plant the seeds before the last frost date, either eight weeks before or fifty days before. 

Knowing the hardiness zone of your area will help you determine the frost date accurately. While the last frost date in most areas in the state is on May 15, the hardiness zones in Massachusetts range from zone 5 to 7. Therefore, you must check your seasons to prevent drawbacks. 


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How to Start an Avocado Farm: 4 Things to Remember

How to Start an Avocado Farm: 4 Things to Remember

Are you interested to learn how to start an avocado farm? Embarking on this journey requires time, effort, and commitment. Plus, you need to consider a number of factors including soil preparation, as well as weather conditions.

You’re probably aware that avocado trees or Persea spp, are originally from Mexico. This explains why one of the famous Mexican cuisines include avocado-based guacamole.

You can choose to grow avocado trees indoors or outdoors. If you plan to grow them in a hobby greenhouse or at home, all you have to do is to sow the seeds in pots. When they’re grown outdoors, avocado trees can grow up to 40 feet. You can al

Moreover, these trees thrive well in regions where the weather is mostly warm and sunny. However, don’t expect them to grow in areas that experience extreme temperatures during the summer and winter.


Avocado: The Superfood

Did you know that the global demand for avocados has been steadily increasing? Aside from the fact that its fruit is known for its full, buttery flavor and rich texture, it’s also packed with loads of essential nutrients that are good for your body.

A single serving of avocado fruit contains vitamin K, vitamin C, folate, potassium, vitamin B1, vitamin B2, vitamin B3, vitamin B5, vitamin B6, vitamin E, manganese, magnesium, iron, copper, zinc, and vitamin A.  It also has protein, fiber, and healthy fats. If you’re on a low-carb plant food diet, you’d want to incorporate avocados into your diet.


What are the Growing Requirements of an Avocado Tree?

Since avocado trees need to be grown in warm semi-humid climates, they only grow in U.S. Department of Agriculture (USDA) plant hardiness zones 8 to 11. However, it’s important to note that while avocado trees may be grown in those zones, they don’t always thrive well in areas that get extremely hot during the summer or frosty, chilly, or snowy in the winter. This implies that the ideal environment for an avocado tree should have moderate temperatures all-year-round.


What are the 3 Primary Groups of Avocado Trees?

If you’re planning to start an avocado farm, you need to know the 3 main groups of avocado trees: Guatemalan, West Indian, and Mexican. Each type has its own ideal growing range.


Guatemalan Avocados

A Guatemalan avocado is known for its hard skin that features plenty of warts.


West Indian Avocados

This type of avocado tends to flourish in warm climates. Unlike the Guatemalan avocado, a West Indian avocado has thin and shiny skin and could weigh up to 5 pounds.


Mexican Avocados

A Mexican avocado thrives well in tropical highland areas. Compared to the other avocado groups, the Mexican avocado is more tolerant of cold weather. In fact, it can manage to survive even when temperatures drop to 26˚F.

Moreover, this type of avocado produces smaller fruit that weighs less than a single pound and its skin has a distinct papery-smoothness to it.


Expert Tips on How to Start an Avocado Farm

Unless you’re willing to take on a long-term project, spend a considerable amount of money on planting, and wait for a period of 3 to 5 years for your first harvest, don’t get into avocado farming. However, if you’re willing to go through the whole nine yards to enjoy top yields for many years, check out this guide:


Tip #1: Plant them in areas where the temperatures are consistently cool

Be sure to plant your avocado trees in cool temperatures that can range between 68˚F to 75˚F on a daily basis to avoid fruit drop. However, when they’re flowering, or when they’re starting to bear fruit, the humidity levels shouldn’t go below 50% at midday.


Tip #2: They don’t like wind

In case you’re not aware, avocado trees have brittle branches that easily snap off. For this reason, it’s best not to plant them in areas that are mostly windy because wind can cause considerable damage to their fruit.


Tip #3: Most of them need proper irrigation

If your avocados are rain-fed, they need to have at least 1,000 mm rainfall spread out throughout each year. Before their flowering season, avocado trees require a drier season that lasts for about 2 months. On a weekly basis, avocado trees need about 25 mm water.

It’s extremely important to test the quality of irrigation water because if its pH and bicarbonates are really high, they trigger a build-up of free lime in the soil. You also need to remember that high levels of sodium and chloride can have a negative impact on your avocado plants.

Since the plant’s roots are shallow, the ideal way to apply water is via a micro-sprinkler or drip. This ensures an even distribution throughout the avocado tree’s root area.

Moreover, proper moisture control needs to be ensured in the root zone because this area tends to easily dry up.


Tip #4: Determine the soil’s suitability and prepare it accordingly

You can’t just plant an avocado seed on soil that hasn’t been prepared accordingly. To prepare the soil for planting, you need to dig soil profile pits throughout your farm. Make sure that the pits are 1.5 m deep.

Only a single put per ha is required. However, you need to dig more pits if the location is non-homogenous or hilly. Check the color of the soil, its texture, structure, patches, sitting water, concretions, hardpans, stones, and gravel.



Grow Your Avocado Trees in a Hobby Greenhouse!

Since avocado trees require specific levels of temperature and humidity, you’ll find it easier to grow them in a hobby greenhouse. The enclosed space allows you to customize the environment to meet the needs of your plants. What’s more, it protects them from strong winds and the constant threat of pests.

Learning how to start an avocado farm outdoors is great, but growing them inside a hobby greenhouse is even better.



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