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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.
Smart Grower Genius+ Granular Plant Fertilizer 6-5-6 is a carbon-enhanced, slow-release 1kg formula that feeds plants steadily while supporting soil biology with humic acid, mycorrhizae and beneficial microbes.
Genius+ is an all-purpose granular fertilizer designed to give vegetables, flowers, shrubs and houseplants balanced nutrition without spikes or burn. Each prill combines NPK with 24% active carbon, 5% humic acid and a blend of mycorrhizal fungi and microbes to help roots access nutrients more efficiently. The slow-release design delivers consistent feeding over time, and the clean formulation contains no biosolids, PFAS, microplastics, or plastic coatings—making it suitable for a wide range of garden uses.
Genius+ uses a slow-release matrix so nutrients are available gradually rather than all at once. That reduces the risk of fertilizer burn and supports steady growth across weeks, not days. The homogenous prills mean each scoop spreads even nutrition through the soil.
Active carbon and humic acid improve soil structure and help retain moisture and nutrients near the root zone. Mycorrhizal fungi extend root reach while beneficial microbes assist nutrient cycling, making fertilized nutrients more available to plants. Together these components focus on soil biology as well as plant nutrition.
Yes—this formula was developed for broad garden use from raised beds and vegetable plots to container plants and ornamentals. Application rates vary by plant size and soil fertility, so follow label directions for best results. The clean ingredients make it suitable for edible gardens and sensitive plantings.
Apply Genius+ evenly to the soil surface and lightly incorporate for best contact with roots; water after application to activate the slow-release mechanism. For containers, use a reduced rate based on pot volume. Repeat feedings as recommended on the label depending on crop needs and growing season.
Who is this for: Smart Grower Genius+ 6-5-6 is aimed at home gardeners, small-scale growers and plant enthusiasts who want a single, versatile fertilizer they can use across vegetables, flowers, ornamentals and houseplants. It suits people who prefer slow, consistent feeding and care about cleaner ingredient lists—no sludge, PFAS, plastic coatings or microplastics—and those who want to support soil biology as part of their feeding routine. Use Genius+ when you want reliable, steady nutrition and improved root access without the risk of sudden nutrient stress.
Nitrogen, Phosphate, Calcium, Magnesium, Zinc, Iron, Boron, Copper, Manganese, Sulfur, Soluble Potash
Q: Is Genius+ safe for edible gardens?
A: Yes. The formula is free of biosolids, PFAS and microplastics and is suitable for vegetables and herbs when used as directed.
Q: How long does each application feed plants?
A: Because it’s slow-release, a single application supplies steady nutrients for several weeks; timing varies by soil and plant demand.
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.
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