How to Read and Understand Your Seed Packets

Introduction: The Importance of Seed Packet Information

Seed packets are the gardener’s essential guide to successfully growing plants, providing crucial information about the seeds and their growth requirements. By understanding the information on seed packets, you can ensure your plants thrive and yield bountiful harvests. This article will help you decipher the information on seed packets and teach you how to use this knowledge to your advantage.

Seed Packet Anatomy: Key Components and What They Mean

Plant Name and VarietyAt the top of the seed packet, you’ll find the plant name and variety. This information is vital because it identifies the specific type of plant the seeds will grow into. In addition, different varieties of the same plant species may have unique characteristics, such as colour, size, flavour, or growth habit.

Seed [packets from Veseys

Seed packets

Botanical Name

The botanical name is the scientific name of the plant, consisting of the genus and species. Knowing the botanical name is essential for accurately identifying the plant and researching its requirements.

Seed Count and Weight

The seed count or weight indicates the number of seeds in the packet or the weight of the seeds, respectively. This information is crucial when determining how many packets you need for your gardening project.

Planting and Germination Information

Seed packets provide essential details on how to plant and germinate the seeds. This information includes:

  • Planting depth: The optimal depth at which to sow the seeds.
  • Plant spacing: The ideal distance between plants for proper growth and development.
  • Row spacing: The recommended distance between rows of plants.
  • Germination time: The number of days it takes for seeds to sprout under ideal conditions.
  • Soil temperature: The optimal soil temperature range for seed germination.

Days to Maturity

The days to maturity refer to the time it takes for a plant to reach the harvest stage from when it is sown or transplanted. This information helps you plan your garden and anticipate when your plants will be ready to harvest.

Sun Requirements

The sun requirements indicate how much sunlight your plants need to grow and thrive. Common categories include full sun, partial sun or shade, and full shade. Understanding your plants’ sun requirements helps you choose the best location for your garden.

plant hardiness map northwest Ontario

Plant hardiness map Northwest Ontario

Hardiness Zone

The Hardiness Zone is a geographic classification system that defines the minimum winter temperatures a plant can tolerate. Knowing your hardiness zone helps you choose the right plants for your area and avoid losses due to cold temperatures.

Planting and Harvesting Tips

Many seed packets also provide planting and harvesting tips to guide you in growing your plants. These tips may include information on transplanting seedlings, thinning plants, watering, fertilizing, or harvesting techniques.

Using Seed Packet Information to Plan Your Garden

By understanding the information on seed packets, you can make informed decisions about your garden. Here are some tips to help you plan your garden using seed packet information:

  1. Choose the right plants: Select plants suitable for your hardiness zone, sun requirements, and available space.
  2. Create a planting schedule: Use the germination time, days to maturity, and planting tips to create a timeline for sowing, transplanting, and harvesting.
  3. Optimize plant spacing: Follow the recommended plant and row spacing to ensure that your plants have enough room to grow and access nutrients, water, and sunlight.
  4. Prepare the soil: Use the soil temperature information to determine when your soil is ready for planting. Amend your soil with organic matter, such as compost or aged manure, to improve soil structure, drainage, and nutrient content.
  5. Rotate your crops: Practice crop rotation to reduce the risk of diseases and pests and maintain soil fertility. Rotate plant families in different areas of your garden each year.
  6. Sow seeds at the correct depth: Sow seeds according to the recommended planting depth to ensure proper germination and root development. Planting seeds too shallow or too deep can hinder their growth.
  7. Monitor and maintain soil moisture: Keep the soil consistently moist but not waterlogged during germination and early growth stages. Use mulch to help retain moisture and regulate soil temperature.
  8. Practice companion planting: Pair plants that benefit each other by repelling pests, attracting pollinators, or improving soil fertility. For example, plant marigolds near tomatoes to deter nematodes or plant basil near peppers to repel aphids.
  9. Keep records of your garden: Maintain a garden journal to track your planting schedule, successes, and challenges. This information will help you improve your garden planning and practices in subsequent years.


For information on many seeds and some we sell, visit our seeds
page located


Storing and Organizing Seed Packets

Proper storage and organization of your seed packets will help you maintain seed viability and make your gardening tasks more efficient. Here are some tips for storing and organizing your seed packets:

  1. Store seeds in a cool, dry place: Keep seed packets in a cool, dry location, away from direct sunlight and temperature fluctuations. This will help preserve seed viability and prolong their shelf life.
  2. Organize seeds by planting date: Sort seed packets according to their sowing dates, making it easier to find the seeds you need during planting season.
  3. Label and date your seed packets: Clearly label your seed packets with the plant name, variety, and date of purchase. This will help you keep track of your seed inventory and know when it’s time to replace old seeds.
  4. Use a seed storage container: Store your seed packets in a container with dividers or compartments to keep them organized and protected from moisture, pests, and damage.
  5. Create a seed inventory: Keep a record of the seeds you have, including the plant name, variety, purchase date, and expiration date. This will help you plan your garden and know when to replenish your seed stock.

Conclusion: The Benefits of Understanding Seed Packets

Reading and understanding seed packets is a vital skill for gardeners. The information they provide enables you to make informed decisions about plant selection, garden planning, and plant care. By following the guidelines on seed packets and implementing the tips in this article, you will be well on your way to growing a successful, bountiful garden.

For information on Canadian Plant Hardiness Zones, visit Agriculture and Agri-Food Canada’s Plant Hardiness website. The website provides a wealth of information on plant hardiness zones in Canada and an interactive map to help you determine the hardiness zone for your specific location.

Here is the link to the website:

By using this website, you can better understand the unique growing conditions in your region and make informed decisions when selecting plants for your garden. The website also offers plant search tools, allowing you to search for plants based on various criteria, including hardiness zones, plant type, and other characteristics. This can be extremely helpful in choosing plants well-suited to your area and gardening needs.

Plant Hardiness systems

The USDA Hardiness Zone system and the Canadian Plant Hardiness Zone system are used to categorize geographic areas based on their average minimum winter temperatures. These systems help gardeners and horticulturists select suitable plants for their specific region, increasing the likelihood of successful growth and minimizing losses due to cold temperatures. While both systems serve a similar purpose, there are differences in their development and structure.

USDA Hardiness Zones:

The United States Department of Agriculture (USDA) Hardiness Zone system was established in the 1960s and has since been updated several times. This system divides North America into 13 zones, each representing a 10-degree Fahrenheit (5.6-degree Celsius) range of average annual minimum temperatures. The zones are further subdivided into “a” and “b” categories, which represent 5-degree Fahrenheit (2.8-degree Celsius) increments within each zone. The USDA Hardiness Zones range from 1a (coldest) to 13b (warmest).

Plant hardiness map Canada

plant hardiness map Canada

Canadian Plant Hardiness Zones:

The Canadian Plant Hardiness Zone system was developed by Agriculture and Agri-Food Canada in the 1960s and has been refined over time. This system considers additional factors beyond minimum winter temperatures, such as summer temperatures, precipitation, and the length of the frost-free period. As a result, it provides a more comprehensive understanding of the growing conditions in different regions of Canada.

The Canadian system divides the country into nine main zones, each representing a 5-degree Celsius average annual minimum temperature range. Like the USDA system, the Canadian zones are also subdivided into “a” and “b” categories, representing 2.5-degree Celsius increments within each zone. For example, the Canadian Plant Hardiness Zones range from 0a (coldest) to 9b (warmest).

Comparing the Two Systems:

While the USDA and Canadian Plant Hardiness Zone systems are valuable tools for selecting appropriate plants for specific regions, they are not directly interchangeable due to the differences in their development and the factors they consider. However, there is some overlap between the two systems, and in many cases, you can find approximate equivalents between the USDA and Canadian zones. For example, USDA Zone 5a roughly corresponds to Canadian Zone 5b.

When selecting plants for your garden, it is essential to use the hardiness zone system that has been developed specifically for your country. This will ensure that you are choosing plants best suited to your region’s unique growing conditions. If you live near the border between the United States and Canada, consider both systems when making your plant selections.



Seeds and planting
Links and Resources

Recommended Products
(These are some of what I use)

These nursery bags
These Grow bags

Pages Seeds Page
Get a Head Start on Spring: The Benefits of Starting Your Seeds Indoors
Saving Vegetable Seeds: A Comprehensive Guide to Gardening Success Planting Guide
Pollock Tomatoes (North hardy Tomato variety)
Tomatoes (Useful information on starting tomatoes from seed)

DIY Garden Irrigation System: A Detailed Guide for Northwest Ontario

Blog Posts

When to start planting seeds
Germination testing your seeds
Looking for sources for seeds?
Heirloom seeds
Chitting your way to more potatoes
So it's before the first frost; what can I plant?


Individual seed and plant information is available in the  "Gardening Shortcut Links" above under "North Hardy Plants to grow". I have successfully grown all of these, and most I grow year to year.






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