GrubTerra (grubterra.com) is a New Jersey-based social impact company on a mission to make pet and livestock nutrition healthier, more sustainable, and more transparent — one grub at a time. Their flagship product, Dried Black Soldier Fly Larvae (BSFL), is the cleanest, most calcium-dense treat supplement available for backyard poultry — containing 75 times more calcium than mealworms, with a perfect calcium-to-phosphorus balance that supports stronger eggshells, faster feather regrowth, and improved egg production.

But GrubTerra is more than a single product. The company has expanded into a complete backyard flock wellness ecosystem: coop deodorizers, certified organic hemp bedding, daily flock electrolyte supplements, natural herbal dewormers, and fresh live larvae for reptiles. Every product is made without additives, preservatives, or synthetic materials — and every purchase diverts food waste from landfills, since GrubTerra's larvae are raised on upcycled produce and bakery waste from local supermarkets.

Their larvae farms are located in the USA, Canada, Costa Rica, and Indonesia — never from China. GrubTerra operates and ships from New Jersey, and offers free shipping on all orders.

What GrubTerra Offers

Black Soldier Fly Larvae (Dried):

• 5lb Dried BSFL: The most popular size for small-to-medium backyard flocks. Raised on vegetable, fruit, and carbohydrate food waste. No additives, no preservatives. 24-month shelf life upon delivery. Ideal for chickens, turkeys, ducks, wild birds, and even dogs and cats in moderation
• 10lb Dried BSFL: The bulk option for larger flocks or owners who want the best price per pound. Same formula, bigger savings. Free shipping included
• 5lb BSFL Bundles (Multi-Pack): Value bundle packs for buying multiple 5lb bags at once — significantly reducing per-pound cost for larger flocks
• Dried Larvae Sample: A trial-size pack for first-time buyers who want to test palatability and results before committing to a larger bag
• Fresh BSFL (Live Larvae): Live black soldier fly larvae in medium and large sizes, primarily for reptiles (bearded dragons, leopard geckos, chameleons) and as a high-stimulation treat for chickens

Coop Care:

• GrubTerra Coop Refresher: An extended-release coop deodorizer using microcapsule technology to deliver controlled essential oil diffusion from natural vermiculite granules. Each bag provides up to 4 weeks of freshness, with multi-pack options delivering up to 15 weeks of continuous odor control. Non-toxic, non-abrasive, and completely safe for birds and humans. Made in the USA
• GrubTerra Hemp Bedding: 100% certified organic hemp hurd bedding for chicken coops. Exceptionally absorbent, naturally resistant to odors and pests, dust-minimal (supporting respiratory health), and longer-lasting than conventional wood shaving or straw bedding. Hemp is sourced and grown in the USA

Flock Health Supplements:

• Hen Harmony — All-in-One Daily Supplement: A water-additive supplement combining electrolytes, probiotics, prebiotics, and vitamins to support hydration balance, gut health, digestion, and overall flock resilience — especially during seasonal stress, heat, and cold. 180 servings per container. Mix directly into the flock's drinking water. Made in the USA with flock-safe ingredients
• Peck Purity Chicken Dewormer: A natural herbal dewormer supplement containing diatomaceous earth, yucca extract, garlic, wormwood, pumpkin seed, black walnut hull, oregano, thyme, and fennel seed. Designed to support gut health and digestive comfort without harsh chemicals. Safe for all ages and egg-laying hens

Who Is GrubTerra For?

Backyard chicken keepers who want to improve their flock's egg production, eggshell strength, and feather health with a single daily supplement that actually works. Multiple verified customers report going from 1–2 eggs per day to 4–5 eggs per day after introducing GrubTerra BSFL consistently.

Reptile owners (bearded dragons, leopard geckos, chameleons, blue-tongue skinks) who need a reliable, nutritious, and readily available live or dried feeder insect that is more nutritious than mealworms and easier to source than crickets.

Environmentally conscious pet owners who want their purchasing decisions to have a positive impact. Every pound of GrubTerra products purchased diverts 20 pounds of food waste from landfills, cutting methane emissions and supporting a circular food system.

Homesteaders and small farmers managing flocks of 5–30 birds who need an affordable, scalable supplement that doesn't require major changes to their existing feeding routine — just a few handfuls sprinkled into existing feed daily.

Flock health-focused keepers dealing with molting season stress, winter production drops, coop odor problems, or digestive and parasite challenges who want natural, chemical-free solutions.

Pricing at a Glance

All orders ship free. Use code GrubSub at checkout for 20% off your first subscription order on any product. Subscriptions can be paused, skipped, or cancelled anytime.

Why We Recommend GrubTerra

GrubTerra is one of the few pet supplement brands that can point to a genuinely unique product with measurable, verifiable results. Black Soldier Fly Larvae are scientifically superior to mealworms as a calcium source — the 75x calcium advantage is not marketing language, it's a documented nutritional fact. The real-world customer results (dramatically improved egg counts, visible feather regrowth, healthier birds during molt and winter) align with what the nutrition science predicts.

Beyond the flagship larvae, GrubTerra's expansion into coop care and flock health supplements makes them a meaningful one-stop destination for backyard chicken keepers — replacing the need to source deodorizers, bedding, electrolytes, and dewormers from separate vendors.

The environmental mission adds an additional layer of genuine value: this is a company that is solving a real waste problem while producing a premium product. That's rare, and it's worth supporting.

Find the latest GrubTerra coupon codes and subscription deals on this page — including the verified GrubSub code for 20% off your first subscription order.