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  • Self-Watering Probes - Package of 5
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Self-Watering Probes - Package of 5

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List Price: $23.50
Price: $10.30 & FREE Shipping on orders over $35. Details
You Save: $13.20 (56%)
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Sold by Larkin Supply and Fulfilled by Amazon. Gift-wrap available.
  • Includes 5 self-watering probes (and hoses).
  • May use liquid fertilizer in water if desired.
  • Water reservoir not included.
  • Delivers between 1/4 and 1 L of water per week (depends on demand)
14 new from $6.99 1 used from $9.99 1 refurbished from $12.99

Miracle-Gro AeroGardens
Grow your own plants and herbs 5 times faster than in soil. See Miracle-Gro's full selection of soil-free indoor gardens.

Frequently Bought Together

Self-Watering Probes - Package of 5 + Master Craft Plant Watering Spikes, Set of 6 + Plant Nanny 6051 4 Count Wine Bottle Stake Set
Price for all three: $37.36

Buy the selected items together


Special Offers and Product Promotions

  • Save 5% each on any offered by Larkin Supply when you purchase 2 or more. Here's how (restrictions apply)
  • Buy Used and Save: Buy a Used "Self-Watering Probes - Package of 5" and save 57% off the $23.50 list price. Buy with confidence as the condition of this item and its timely delivery are guaranteed under the "Amazon A-to-z Guarantee". See all Used offers.
  • Get a $100 Amazon.com Gift Card: Get the Discover it card and get a $100.00 Amazon.com Gift Card* after your first purchase within 3 months. Learn more.

Product Details

  • Product Dimensions: 1 x 1 x 33 inches
  • Shipping Weight: 1 pounds (View shipping rates and policies)
  • Origin: Netherlands Antilles
  • ASIN: B0002VAHXC
  • Average Customer Review: 3.5 out of 5 stars  See all reviews (232 customer reviews)
  • Amazon Best Sellers Rank: #2,863 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)

Product Description

Self Watering Probes are a simple and effective way of watering your plants while you are on vacation. Just soak them in water for a couple of minutes to prepare the tips, then insert the probes into the soil of your potted plants and place the hose ends in a water reservoir nearby. The water will be slowly emitted through the ceramic cones, automatically watering your plants without the need to set timers or worry about electronic devices being turned on while you are away

Customer Reviews

These draw down the water too quickly for my plants which are in mostly sandy soil.
Flashclip
If you put the plant on the table and the water container on the table, the water will be too high and will over water your plant.
yiota
Followed those instructions which were more detailed than the minimal instructions that came with the product.
B. Rice

Most Helpful Customer Reviews

280 of 283 people found the following review helpful By S. Robinson on May 3, 2008
Verified Purchase
We're snowbirds, splitting the year in half, and have always had to find someone to watch my wife's plants.
This year we decided to try these spikes. We put a couple plants on them for about 2 months, with good results, so decided to see if they'd make it until our return in November. We got some 18 gallon totes for water reservoirs (netting about 14 gallons). The test plants were in 10" pots with 2 spikes each and took about a gallon per month for both.
I'll try to remember to update this review on our return, but we are expecting the same satisfactory results.

Well, we had one of our friends check on things last week (mid Sept) and all of our plants are doing wonderfully. They added water to the totes. This is about 4-1/2 months after leaving them. It seems that if there is enough water, this could be an indefinite solution. We are very impressed and have recommended them to several of our friends that have similar needs.

Adding this to review - 04/01/2011: We had to boil out the tubes so that they would continue to work (per manufacturer's instruction). We have a fair amount of mineral in our water, so the deposits in the tube made them less effective. I think they made it 3 years before this happened, but in hindsight, I think we'll probably perform annual maintenance (boil and blow out) so that they don't get completely plugged. A couple people asked about the larger water reservoir and for that we just use the 18 gallon storage totes (Homz, Rubbermaid, etc.) that you get at the home center stores. I drilled little holes into the totes by the handles so that I could put the lids on to minimize evaporation. I have 5 totes with three tubes in each one.
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153 of 158 people found the following review helpful By yiota on March 26, 2009
Verified Purchase
When they work, they're great. When they don't work, well...

First you can't use them in a clear container. Two you can't use them when your watering container is higher or on the same level as the plant. Three the cord is short and is very obvious.

IF you put the plant on a side table and the container on the floor, the cord can't reach the floor and there for can't reach the bottom of the container.

If you put the plant on the table and the water container on the table, the water will be too high and will over water your plant.

If you use a clear container it will grow algae and look gross, really, really quickly.

So dark container below the plant but not too far below the plant. Probe must be thoroughly soaked and full of water before inserting into plant. Check every couple of days to make sure that probe took (easy enough, check if probe is still full of water). Repeat process if probe didn't take.

Check regularly to see if probe is still working. If you accidentally let the water go below the end of the cord, you must redo initial process even if probe is currently full.

I'm not saying they are horrible, but if you plan to use them they do require maintenance.
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58 of 62 people found the following review helpful By E. D'Alise on January 16, 2010
Verified Purchase
We recently went on a 20 day vacation, and were concerned about our plants. Typically we ask our cat-sitter to check the plants and water them as needed, but that is an imposition we are usually reluctant to add to her pet-sitting chores.

I checked the local home improvement stores, but did not like any of the systems they had. I did some research at Amazon and came across these. As an engineer I like the principle behind them, and was curious if they would actually work.

A week or so before leaving I set the plants up with the self-watering probes and monitored them. They appeared to work as promised, but the proof would be in the performance while we were away.

I'm happy to report healthy plants, and the units working as promised. I had calculated the amount for the water reservoir based on the instructions, and when we came home the level was where I expected it to be. I think I will now use this as a regular watering system, even when we are home, as we live in Colorado, and moisture is always a problem. With this system I don't have to worry about when or how much to water the plants, and any little worry I can dispense with is a big plus.

I highly recommend this product.

Note: one thing not explained in the description is that larger pots require more than one probe per pot. The instructions say 15cmm pot (~6") one probe, 20cm (~8") two probes, and 40cm (~16") four probes. They also list an approximate flow rate based on the height of the reservoir relative to the pot, and the type of soil contained in the pot. I adjusted the number of probes and height of the reservoir based on the water requirements of the plant. I would suggest actual trials before they are needed, as over-watering is often as bad as under-watering, if not worse.
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41 of 43 people found the following review helpful By SovereignTrader on May 26, 2009
Verified Purchase
I've been using these for a little over two weeks as a test run for when I travel for a month later in the summer, and they basically work like an IV for your plants. In that regard they do work as advertised. However, I have found that most houseplants do not do well on a continuous supply of water. I have a wide variety of houseplants, the only ones that seem to do well with these are the palms. Most of my other houseplants now have fruit flies hanging around them attacking the roots. 2 of my plants I had to actually throw out because the roots started rotting. I am letting my other plants dry out, hopefully I can save them.

So these are not the answer to watering your plants when away on vacation, unless you are gone for a week or less. I would not recommend them for a 2 week or more period, unless they are palms. For many plants a drip feed timed system would be better so that the roots can dry out sufficiently so they don't rot. I'll consider this a lesson learned, but in the future I will only use these for plants that I know will do well with constantly moist soil.
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