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Cowbell Mini Self-Watering Plant Care Kit (250mL)

Regular price $39.97 USD
Unit price
USDper 
5.0
Rated 5.0 out of 5 stars
38 Reviews

Free US shipping over $150

Everything you love about our Cowbell Classic 750mL in a petite 250mL size, perfect for all your plants in under 5 inch planters.

Cowbell Mini makes plant watering easy by keeping plants self-hydrated for 1-5 weeks (depending on individual plant thirst needs).

Works for indoor and outdoor container plants. Works best in soil-based potting mixes. Not ideal for leca or semi-hydro substrates. 

Each Mini is made from sustainable and partially recycled materials and is packaged in a biodegradable gift tube. Plant and planters not included.

Shipping calculated at checkout.

Cowbell is unlike any other self-watering product you've used before!

Cowbell's pressure-regulated reservoir and lid keeps water suspended in a precise vacuum which means water doesn't drip by itself.

Plant roots and soil draw water from Cowbell only as needed using natural biology and physics processes like root pressure, capillary action, cohesion tension and water diffusion.

Once the pressure inside the reservoir reaches a certain threshold, the lid valve automatically equalizes the pressure. This means your plant roots never have to work too hard to draw water from the reservoir, while also preventing Cowbell from dripping unnecessary water into your plant.

No over-watering! No root rot! No water waste!

Science is awesome.

*Please note all plants are unique and some may drink slower or faster than 2 weeks depending on a variety of factors like plant type, plant age, ambient temperature, soil type, container size, container type, season, and prior watering habits. If you have any questions, please reach out to our 24/7 plant care help line. 1-888-98-PLANT

  • Reservoir: Shatterproof, weatherproof, recyclable, luxury PET sourced from Japan. BPA-free.
  • Lid: Tritan copolyester sourced from the USA. GREENGUARD® Certified for low chemical emissions.
  • Valve: Medical-grade silicone sourced from the Netherlands.
  • Protective Spike: Bamboo, glass and polypropylene sourced from China. Dishwasher-safe.
  • Cone: Natural porcelain sourced from a small family-run factory in China that uses ancient kiln firing techniques. Dishwasher-safe.

We recommend a container with at least 3 inches (7.6 cm) of soil height for stability.

  • One Cowbell Mini will last ~1-2 weeks for most houseplants in 3"-5" diameter containers.
  • One Cowbell Mini has a 2" radius of diffusion.
  • We recommend the Cowbell Classic for larger containers, or multiple Minis.

  • Assembled height: 9" (22.9 cm)
  • Spike height: 3.5" (8.9 cm)
  • Reservoir volume: 250 mL
  • Single unit weight: 0.25 lb (0.11 kg)

We are proud to be part of the 1% For The Planet movement!

Each Cowbell is packaged and delivered in its own eco-friendly gift box.

$1 of every box goes towards ocean conservation and reforestation projects around the world. 


Set up your Cowbell in minutes!

  • Water your plant before use for the longest-lasting results. Don't worry about overwatering, Cowbell will wait until your plant has used up the water in the soil before drinking from Cowbell.
  • Twist and tighten the spike onto reservoir
  • Bury the spike into damp soil
  • Fill your reservoir with clean water.
  • Seal tightly with lid to create vacuum seal
  • Refill by simply removing the lid. Repeat the above steps for every refill.

Cowbell does not need to be cleaned regularly. But if you'd like for it to look pristine, it is easy to clean!

If you use Cowbell outdoors or in direct sun, or if you fill your Cowbell with rainwater, you may find some natural algae growth in the reservoir after a few months.

We recommend twisting off the spike and handwashing the reservoir with soap and water.

We don't recommend putting the lid or reservoir in the dishwasher as it may cause some warping at extremely high temperatures. 

The spike and cone are dishwasher safe but you can also rinse it by hand or clean it with a scrub brush if you find that anything has plugged the ceramic cone.


We stand behind the quality of our products and will replace any components within one year of purchase.

If you have any issues with your Cowbell, please reach out to us at hi@cowbellplant.com and we'll do our best to make it right.

We ship out of our Florida warehouse.

In stock items ship same business day if order placed before 1pm ET (US). Items ship next business day if placed after 1pm ET (US).

If you choose Economy shipping, your Cowbells will be delivered between 3-7 business days within the US and Canada.

We insure every order.

If you need faster, guaranteed shipping, you will see priority options during checkout.

You will receive an email or text with tracking information when your Cowbell leaves our Florida warehouse!

Enjoy peace of mind with our free 30-day return policy.

Please see Returns & Exchanges for more details.

Contact us any time at hi@cowbellplant.com or 1-888-98-PLANT if you have any questions or concerns!

We're excited to offer International Shipping to select regions outside the US!

Cowbell pre-pays all customs and duty fees, so you are not responsible for any additional fees, and you don't have to worry about shipments being stuck in customs.

The shipping price you see at Checkout is the final price you pay.

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Plant Parents Love Cowbell!

5.0
Rated 5.0 out of 5 stars
Based on 4 reviews
Slide 1 selected
4 reviews
  • RC
    Ron C.
    Verified Buyer
    Cowbell Mini Self-Watering Plant Care Kit (250mL)
    Reviewing
    Cowbell Mini Self-Watering Plant Care Kit (250mL) 2 Cowbells - save $4
    I recommend this product
    Rated 5 out of 5 stars
    Cowbell Mini Number 3 and counting!

    This is the third Cowbell Mini we have ordered and could not be happier with the product. I hate to say it but our plants are doing BETTER with the Cowbell in place than they were when we were watering them ourselves. The product is well designed, well constructed and comes with a great set of instructions. Highly recommended for those of us with less-than-green thumbs.

  • J
    Jake
    Verified Buyer
    Cowbell Mini Self-Watering Plant Care Kit (250mL)
    Reviewing
    Cowbell Mini Self-Watering Plant Care Kit (250mL)
    I recommend this product
    Rated 5 out of 5 stars
    Better than the aqua globe

    I had aqua globes in my mom’s plants growing up and every problem they had, from the glass breaking to dirt clogging, the cowbell has fixed and improved upon! The science behind this is amazing.

  • M
    Max
    Verified Reviewer
    Cowbell Mini Self-Watering Plant Care Kit (250mL)
    Reviewing
    Cowbell Mini Self-Watering Plant Care Kit (250mL)
    I recommend this product
    Rated 5 out of 5 stars
    Returned from trip to a healthy bonsai!

    I travel quite a bit but also inherited an old bonsai from my dad recently. I was really worried about not killing this 50 yo plant when I had to be in Europe for work for a month.

    I tried Cowbell on one of them and can’t believe it actually worked well! Just ordered a few more for the other plants.

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