Delta Worms

Delta Worms We breed and sell red worms to vermiculture-minded parties. Delta Worms also provide education semin The mission of Delta Worms is to build soil.

Supplying castings, extracts, soil mixes, and worms for growing, you can count on our guidance as you begin or continue your vermicompost experience. Our product is the perfect vermicompost soil, rich in microbes and nutrients from the help of our worms. Turning organic matter into usable, healthy soil is the result of the hard work of our Red Wiggler worms in addition to the passion of our small

but experienced team. Without customers like you, vermiculturists with a taste for organic growing, we wouldn’t know who to share our secrets with. Shop Delta Worms for all of your present and future growing needs.

You don’t need a big farm to start composting. A backyard pile or small bin is enough to transform leaves, weeds, and ki...
05/31/2026

You don’t need a big farm to start composting.

A backyard pile or small bin is enough to transform leaves, weeds, and kitchen scraps into nutrient-rich compost.

Add a layer to your raised beds or mix into containers, then let the biology do the heavy lifting this summer.

When your soil is rich in organic matter and biology, you can often reduce synthetic fertilizers and water use. Compost,...
05/30/2026

When your soil is rich in organic matter and biology, you can often reduce synthetic fertilizers and water use. Compost, vermicompost, and living soil mixes help your plants access nutrients more efficiently and stay resilient in summer heat. That’s good for your yields and your budget.

If you want strong yields in July and August, now is the time to top-dress with compost and worm castings. Just spread i...
05/28/2026

If you want strong yields in July and August, now is the time to top-dress with compost and worm castings.

Just spread it along the row or around each plant, lightly scratch it in, and water well.

Your soil microbes will get to work long before the temperatures spike.

Not all soil mixes are created equal. Our blends are designed to support strong root growth, good drainage, and water ho...
05/27/2026

Not all soil mixes are created equal.

Our blends are designed to support strong root growth, good drainage, and water holding capacity—key for navigating hot, dry Delta summers.

Pair them with compost and vermicompost, and you’ve got a powerhouse foundation for your crops and container gardens.

Our new guide, “Preparing Garden Beds – Hot Summer Months,” walks you through simple, practical steps to protect your pl...
05/27/2026

Our new guide, “Preparing Garden Beds – Hot Summer Months,” walks you through simple, practical steps to protect your plants, save water, and keep your soil life thriving all season long.

1. Clean up old plants and weeds to improve airflow and reduce disease.

2. Mix in compost and worm castings to hold moisture and feed microbes.

3. Dial in drip irrigation or soaker hoses for deep, efficient watering.

4. Add 2–4 inches of mulch to keep roots cool and cut evaporation.

5. Choose heat-loving crops and use shade cloth where plants need extra protection.

If you want beds that don’t fry in July, this step-by-step guide will help you set them up for success now.

👉 Read the full post: https://deltaworms.com/2025/07/preparing-garden-beds-for-hot-summer/

Thinking about starting a worm bin? Late spring and early summer are perfect in the Northern California Delta. Temperatu...
05/25/2026

Thinking about starting a worm bin? Late spring and early summer are perfect in the Northern California Delta. Temperatures are warm but not extreme, so worms can settle into their new home quickly. We’ve got composting worms and vermicompost to get you started strong.

05/24/2026

Those strawberry tops, coffee filters, and lettuce cores don’t have to go in the trash. Feed them to your worms, and in a few months you’ll be feeding your flowers, herbs, and tomatoes with the vermicompost they create. Closing the loop at home is one of the easiest ways to support healthier soil in our Delta communities.

Wondering what to feed your composting worms? Yes: fruit and veggie scraps, coffee grounds, tea bags, crushed eggshells,...
05/23/2026

Wondering what to feed your composting worms?

Yes: fruit and veggie scraps, coffee grounds, tea bags, crushed eggshells, and shredded cardboard.

No: meat, dairy, oily foods, and pet waste.

Simple inputs in = clean, powerful worm castings out.

Summer in the Northern California Delta is coming fast! Are you:A) Top-dressing with compostB) Starting a worm binC) Ref...
05/21/2026

Summer in the Northern California Delta is coming fast!

Are you:
A) Top-dressing with compost
B) Starting a worm bin
C) Refreshing soil in your containers

Drop your letter in the comments and tell us what you’re growing this season.

Did you know your composting worms can double their population in as little as 60–90 days under the right conditions?Our...
05/20/2026

Did you know your composting worms can double their population in as little as 60–90 days under the right conditions?

Our latest blog, “Composting Worms' Life Cycle: How Worms Reproduce and Grow,” breaks down what’s actually happening in your bin, from tiny cocoons to hard-working adults:

*How hermaphroditi worms mate and exchange s***m every 7–10 days in ideal conditions.

*The lemon-shaped cocoons (about match-head size) that hold 1–5 baby worms each.

*How cocoons hatch in about 21–30 days when moisture and temperature are just right.

*Why juveniles hit maturity in 6–8 weeks and then start the whole cycle over again.

*What happens to population growth when space, food, or moisture gets limited.

If you want a thriving bin that produces more castings (without constantly buying more worms), understanding their life cycle is the key.
Read the full guide: https://deltaworms.com/2025/07/composting-worms-life-cycle/

Address

Discovery Bay, CA

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm
Saturday 9am - 5pm
Sunday 9am - 5pm

Telephone

(925) 809-0695

Website

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