




Couldn't load pickup availability
Free UK delivery on every order. Packed within 1 business day; typically delivered in 2–4 business days (3–6 for Highlands, islands and NI). Every parcel is tracked.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Free 30-day returns. Email us for a prepaid label — refunds land within 3–5 business days of the return arriving. Your statutory rights always apply on top.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Real people, real answers — email gardenluxe.co.uk@gmail.com with your order number or product question and we will reply within one business day.
TRAILMARK NATURALS 12-pound black oil sunflower seeds are a high-energy, non-GMO bird food designed to attract a wide variety of backyard birds and fit most feeder types.
These black oil sunflower seeds come from U.S. growers and are packed to deliver consistent size, dark shells, and the high oil content birds prefer. Sold in a 12 lb bulk bag, this seed is suited for tray, hopper, and tube feeders or for scattering on the ground. The seeds are popular with cardinals, chickadees, finches, nuthatches, and many other wild species, making them a reliable choice for backyard wildlife feeding and birdwatching.
Black oil sunflower seeds have thinner shells and a higher oil ratio than many mixed blends, so birds can access the nutritious kernel more easily. Because of their rich fat content, they provide the energy birds need, especially during migration and colder months. Using a single-seed option also reduces waste leftover from shells and seed types birds won’t eat.
TRAILMARK NATURALS sunflower seeds perform well in most common feeders. Fill tube feeders for clinging species, use hopper or tray feeders for ground-feeding birds, and scatter small amounts for foraging behavior. The seed’s size and texture minimize clogging in feeders while remaining accessible to a wide range of beak shapes.
Yes — the seeds are non-GMO and sourced from farms in the United States, supporting domestic agriculture and shorter supply chains. Packaging and storage recommendations help maintain freshness and reduce the chance of mold or spoilage. Storing the bag in a cool, dry place and using within a reasonable time keeps the seed attractive to birds.
Regularly cleaning feeders and rotating where you place seed helps limit disease transmission and prevents buildup of husks or droppings. Offer seed consistently so birds can rely on the food source, but avoid overfilling to reduce waste. Placing feeders near cover like shrubs gives birds quick escape routes and encourages natural feeding behavior.
Who is this for? TRAILMARK NATURALS 12 lb black oil sunflower seed is ideal for homeowners, birdwatchers, and wildlife caretakers who want an economical, high-quality seed that attracts many common backyard species. Choose this bag if you need a dependable, U.S.-sourced option that works across feeder types and supports regular feeding routines without frequent restocking.
Q: Will this seed attract cardinals and finches?
A: Yes. Black oil sunflower seeds are favored by cardinals, finches, and many songbirds because of the high-oil kernels and thin shells.
Q: How should I store the 12 lb bag?
A: Keep the unopened bag in a cool, dry place. Once opened, use a sealed container to maintain freshness and prevent pests.
Free UK delivery on every order — packed within 1 business day, arriving in 2–4 business days.
Free 30-day returns — email us for a prepaid label; refunds land within 3–5 business days of the return arriving.
Join the list and we will email you code WELCOME10 — plus honest seasonal picks for the garden. No spam, ever.
