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Kelly T.

A Comprehensive Guide to Seed Selection

Updated: Feb 16



selecting seeds for your garden

The cold dreary winters months can make gardening seem like a distant memory. However, the winter is the perfect time to start planning your garden, perusing seed catalogs and dreaming about the marvelous things you will grow in a few short months time.


Embarking on a gardening journey is an exciting venture, but selecting the right seeds is a crucial first step. From understanding the nuances of non-GMO and hybrid seeds to navigating the world of coated and non-coated options, this guide will help you make informed decisions for a flourishing garden. Let's explore the key aspects of seed selection, including heirloom varieties, growing zones, and sun exposure.


Non-GMO seeds are a popular choice for those seeking a more natural approach to gardening. These seeds have not undergone genetic modification, ensuring the preservation of traditional plant traits and promoting biodiversity.


GMO Seeds:

Conversely, GMO (Genetically Modified Organism) seeds have been altered to exhibit specific traits, such as resistance to pests or improved yield. While controversial, some gardeners opt for GMO seeds for their potential benefits.


Hybrid Seeds:

Hybrid seeds result from the controlled cross-breeding of two different plants, combining the best traits of each. These seeds often display enhanced vigor, disease resistance, and productivity.


An example of a hybrid seed is the F1 hybrid tomato, often known as the "Celebrity" tomato. F1 hybrids are created by crossing two different parent varieties to achieve desirable traits in the resulting plants. The Celebrity tomato is renowned for its disease resistance, uniform fruit size, and excellent flavor. It's a popular choice among gardeners for its reliability and consistent performance, thanks to the combination of traits inherited from its parent plants during the hybridization process. Keep in mind that F1 hybrids do not produce seeds that reliably carry the same characteristics, so gardeners often need to purchase new seeds for each growing season.


Heirloom seeds are prized for their historical significance and the ability to be open-pollinated, meaning they reproduce naturally. Gardeners who value preserving plant heritage often choose heirloom varieties.


Coated Seeds:

Coated seeds are gaining popularity for their protective layers that enhance germination and provide essential nutrients during early growth stages. These coatings may include beneficial fungi, micronutrients, or protective compounds.


Non-Coated Seeds:

Non-coated seeds are unaltered and free from additional coatings. Gardeners who prefer a more traditional and organic approach often opt for non-coated seeds.


Growing Zones:

Understanding your local growing zone is paramount for successful gardening.

Here's a general overview of the planting hardiness zones in North America, along with their related high and low temperatures:


Zone 1a:

Lowest temperature: -60°F to -55°F

Highest temperature: Below -50°F

Zone 1b:

Lowest temperature: -55°F to -50°F

Highest temperature: Below -50°F

Zone 2a:

Lowest temperature: -50°F to -45°F

Highest temperature: -45°F to -40°F

Zone 2b:

Lowest temperature: -45°F to -40°F

Highest temperature: -40°F to -35°F

Zone 3a:

Lowest temperature: -40°F to -35°F

Highest temperature: -35°F to -30°F

Zone 3b:

Lowest temperature: -35°F to -30°F

Highest temperature: -30°F to -25°F

Zone 4a:

Lowest temperature: -30°F to -25°F

Highest temperature: -25°F to -20°F

Zone 4b:

Lowest temperature: -25°F to -20°F

Highest temperature: -20°F to -15°F

Zone 5a:

Lowest temperature: -20°F to -15°F

Highest temperature: -15°F to -10°F

Zone 5b:

Lowest temperature: -15°F to -10°F

Highest temperature: -10°F to -5°F

Zone 6a:

Lowest temperature: -10°F to -5°F

Highest temperature: -5°F to 0°F

Zone 6b:

Lowest temperature: -5°F to 0°F

Highest temperature: 0°F to 5°F

Zone 7a:

Lowest temperature: 0°F to 5°F

Highest temperature: 5°F to 10°F

Zone 7b:

Lowest temperature: 5°F to 10°F

Highest temperature: 10°F to 15°F

Zone 8a:

Lowest temperature: 10°F to 15°F

Highest temperature: 15°F to 20°F

Zone 8b:

Lowest temperature: 15°F to 20°F

Highest temperature: 20°F to 25°F

Zone 9a:

Lowest temperature: 20°F to 25°F

Highest temperature: 25°F to 30°F

Zone 9b:

Lowest temperature: 25°F to 30°F

Highest temperature: 30°F to 35°F

Zone 10a:

Lowest temperature: 30°F to 35°F

Highest temperature: 35°F to 40°F

Zone 10b:

Lowest temperature: 35°F to 40°F

Highest temperature: 40°F to 45°F

Zone 11a:

Lowest temperature: 40°F to 45°F

Highest temperature: 45°F to 50°F

Zone 11b:

Lowest temperature: 45°F to 50°F

Highest temperature: 50°F to 55°F

Zone 12a:

Lowest temperature: 50°F to 55°F

Highest temperature: 55°F to 60°F

Zone 12b:

Lowest temperature: 55°F to 60°F

Highest temperature: 60°F to 65°F

Zone 13a:

Lowest temperature: 60°F to 65°F

Highest temperature: Above 65°F


These temperature ranges provide a guide for selecting plants that can thrive in specific climate conditions.


Sun Exposure:

Different plants have varying sun requirements. Assess your garden's sun exposure throughout the day to select seeds that match these conditions, ensuring your plants receive the right amount of sunlight for optimal growth.


Now that you have an understanding about how to select the seeds that are right for you, the final step, and maybe the most important is to select seeds for things you like. Plant vegetables you will enjoy eating fresh or that you can store or can to prepare for the following winter. What you plan to do with what you grow is as important as what you grow. When selecting flowers, choose flowers and greenery that appeal to you in addition to what will grow well in your environment. Maybe this year is the year to try a new vegetable to see if you like it. If you end up not liking it, you can always share with your neighbors.


Happy gardening!


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