Can these worms live in outdoor planters? I live in an area that gets cold in the winter.

Cold is relative to your location and container depth. If down to freezing and below, then not likely. Mine are in the basement and thriving.

Are earth worms or red worms better for plant growth and how many worms are needed per sq ft?

Night crawlers tunnel deep up to 6ft. Red worms stay in topsoil 1-2 inches. Both are highly beneficial Worms reproduce based on available food supply so you could start with a small bag and rest assured they will fill out the entire space eventually. I have both in my yard started with nightcrawlers and a few months later added red worms. Every time I dig in the soil there always worms. I Started with bad soil and zero worms.

What is a safe temperature for the worms?

I always keep them above freezing. If you have a free standing worm composter, don't leave them outside during the winter. Make sure that they have enough moisture.

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Uncle Jim's Worm Farm 250 Count Super Red European Nightcrawlers for Composting and Garden Soil Aeration | Large Nightcrawlers Improve Soil Structure and Quality for Healthier Gardens

Product ID: 223768054

Details

Brand
Uncle Jim's
Color
Red
Manufacturer
Uncle Jim's
Number of Items
250
Unit Count
250 Ounce

🌱2-5x larger than typical worms

🪱250 Super Red Nightcrawlers

♻️Boosts compost speed & soil health

454.37 DT

Duties & taxes included

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Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🪱 Turn your garden into a green powerhouse with Uncle Jim’s Super Red Nightcrawlers!

TRUSTED WORM MASTERS - From the largest US worm farm with 50+ years of expertise, raised proudly in the USA.
SOIL AERATION EXPERTS - Natural tunneling improves water & nutrient flow for stronger roots and lush gardens.
GARDEN GROWTH CATALYST - Transforms food scraps into nutrient-dense worm castings packed with phosphates, nitrogen, and potash.
TURBOCHARGED COMPOSTING - Super Red worms work all soil layers for faster, richer compost.
ECO FRIENDLY WASTE SOLUTION - Reduce landfill waste and chemical fertilizers with organic worm-powered recycling.

Uncle Jim's Worm Farm offers 250 Super Red European Nightcrawlers, 2-5 times larger than typical red worms, expertly harvested from decades-old worm beds. These worms accelerate composting by working through all soil layers, producing nutrient-rich castings that enhance soil structure, aeration, and plant health. Ideal for eco-conscious gardeners seeking organic soil improvement and waste reduction, Uncle Jim’s worms come from the largest US worm farm with over 50 years of experience.

Specifications

ASIN	B08GRC1M1S
Best Sellers Rank	#6,673 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #44 in Mealworms Bird Food #3,311 in Gardening & Lawn Care
Brand Name	Uncle Jim's Worm Farm
Color	Red
Customer Reviews	4.2 4.2 out of 5 stars (2,420)
Manufacturer	Uncle Jim's Worm Farm
Number of Items	250
Unit Count	250 Ounce

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