William Dam Seeds

William Dam Seeds Suppliers of Quality Untreated & Organic Seeds for Canadian Growers and Gardeners. www.damseeds.com

"Don't take any risk-try my seeds” is printed on our company's first pricelist. These may be bold, but the importance of using quality seed when gardening is an enduring principle of William Dam Seeds. From humble beginnings in a rented farmhouse, delivering orders by bicycle, to our current farm in the Golden Horseshoe that integrates shipping with computer networking; our history has been one of providing quality seed to gardeners.

DYK we’re still receiving & packaging seed all season long? Just got more Cosmos Bright Lights today!
03/20/2026

DYK we’re still receiving & packaging seed all season long? Just got more Cosmos Bright Lights today!

Just in! After waiting for 2 years, we’re glad to have Petunia Trilogy Cherry Morn seeds in stock ⌛️
03/05/2026

Just in! After waiting for 2 years, we’re glad to have Petunia Trilogy Cherry Morn seeds in stock ⌛️

Exploring the theme of Therapeutic Gardening for 2026:
03/02/2026

Exploring the theme of Therapeutic Gardening for 2026:

Community gardens enrich lives across Canada.

It’s wintery days like today that have us dreaming of summer! Green Lightning an is delicious and beautiful
02/18/2026

It’s wintery days like today that have us dreaming of summer! Green Lightning an is delicious and beautiful

Our store is open on Family Day (Monday Feb 16) and is mostly stocked
02/14/2026

Our store is open on Family Day (Monday Feb 16) and is mostly stocked

02/04/2026

Mix, mix, mixing up the last mix of our packaging season!

Today, and 6 months ago
01/27/2026

Today, and 6 months ago

01/17/2026

We’re excited to add this bicolour Marigold to our assortment! We’ve got a history with these gorgeous flowers. marigolds

01/09/2026

Blending up the Borage & Phacelia Mix: feeds pollinators in cool weather. 🐝

Preparing to package Desert Sun, thinking warm sunny thoughts 🌞🌻
12/22/2025

Preparing to package Desert Sun, thinking warm sunny thoughts 🌞🌻

12/19/2025

Our elves are busy packaging seed for the new season 🎄🎄🎄 🎁⭐️🎄

Our 2026 catalogue is ready: come into our store to get a copy, or let us know when yours arrives in the mail.
12/04/2025

Our 2026 catalogue is ready: come into our store to get a copy, or let us know when yours arrives in the mail.

Address

279 Highway 8
Dundas, ON
L9H 5E1

Opening Hours

Monday 9am - 4:30pm
Tuesday 9am - 4:30pm
Wednesday 9am - 4:30pm
Thursday 9am - 4:30pm
Friday 9am - 4:30pm

Telephone

1-905-628-6641

Website

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Gardening starts with a seed

"Don't take any risk-try my seeds” is printed on our company's first pricelist. These may be bold, but the importance of using quality seed when gardening is an enduring principle of William Dam Seeds. From humble beginnings in a rented farmhouse, delivering orders by bicycle, to our current farm in the Golden Horseshoe that integrates shipping with computer networking; our history has been one of providing quality seed to gardeners.

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