Blumat XL Automatic Watering Kit

Extra Large Blumat Auto-watering system includes everything you need to automatically water up to 40 plants in 10 gallon pots using a standard hose connection.

This set is designed for use on balconies with 10 boxes of 1 meter (3 feet) diameter each, but is also suitable for other purposes, such as watering larger collections of planting tubs or for outfitting a winter garden or small greenhouse. As a general rule of thumb: 4 Tropf-Blumat (4 drip locations) are required per 1 meter diameter box, 3 Tropf-Blumat per 0.8 meter (2.5 feet) diameter box or 1 Tropf-Blumat in planters up to 25 cm (10 inches) diameter. 

Water can be supplied by connection to a water faucet. 


  • 40 Tropf-Blumat automatic watering carrots
  • 15 m (49 feet) water supply tubing
  • 2 elbow connectors
  • 2 end pieces
  • 2 branch connectors
  • 2 hose unions
  • 1 pressure reducer

The Tropf-Blumat (Drip-Blumat) is a sensor that supplies plants with drips of water via thin tubing. As the soil dries, its natural suction power triggers the opening of the Tropf Blumat allowing the water to flow. When the soil is sufficiently moist, the Tropf Blumat automatically stops. The system functions fully automatically. 

Every plant, every container or group of plants requires at least 1 Tropf-Blumat adjusted to the individual needs of the plant. Larger containers or surfaces require longer or more than one sensor. All Tropf-Blumats are connected using one supply tube, this allows for flexibility in the layout and is changeable at any time.

  • Automatically waters individual plants, and only when needed
  • Connects directly to your hose tap or rain barrel
  • Easily installed with a pair of scissors
  • Inexpensive and works for years
  • Ideal for small or larger grow areas
  • Silent - makes no noise
  • No spray

The Process

Water is sucked out of the ceramic sensor through the suction force of the dry earth. Suction tension develops in the Tropf-Blumat, the flexible membrane is pulled downwards, thereby allowing the passage of water, the drip tube begins dripping. If the earth is moist enough, then the subpressure in the sensor causes the water to be sucked back into the cone, the membrane returns to its original position and squeezes the drip tube closed with a rod, the passage of water is stopped. The point at which the valve closes is set with an adjusting knob. This determines when the drip tube is closed and by which suction tension (i.e. by which degree of dryness) the watering should begin.

Tropf-Blumat is an intelligent watering system, enabling the plants to take care of themselves. Watering occurs only in amounts that the plants actually need, not just as a back-up during vacation periods, rather throughout the growing season. The self-regulating sensor uses water pressure to control a slow, low dosage dripping, without electricity or use of an automatic dispenser.

Customizing for individual plant sizes and variable system requirements is possible at all times. This opens up a wide spectrum of possible uses- from balcony boxes, to tub plantings on a patio or in a sunroom, to smaller bed plantings, or solitary bushes in the garden or even tomato plants in a small greenhouse. 

Click here for the complete Blumat Operating Instructions guide. Click here to view all Blumat systems and accessories.

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  • Item #: IG15479
  • Manufacturer: Blumat

Blumat XL Automatic Watering Kit

Price: $335.95
Sale Price: $299.99
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