Disinfecting and Reusing Old Planters

I save my transplant packs and plastic pots for future use.  Many of us do.  They are stackable, reusable, take up a small amount of space, and saves us money in our gardening budget.  However, when reusing old planters, I want to remind you to disinfect them prior to planting new seedlings.  If you do not, you may accidentally pass off disease to your new seedlings.

You can easily sanitize your pots by swirling them or dipping them in a disinfectant solution.  I use a 1:10 ratio of bleach to water solution.

How To Disinfect Old Planters

Materials

• dishwashing gloves or rubber gloves 
• shallow tub
• sponge or small plastic bristle brush
• dishwashing soap
• bleach
• water

Directions

1. Protection. Put on your gloves.
2. Scrub pots.  Scrub away dirt and crusted debris with a little soap, water and sponge or plastic bristle brush.  Empty out your tub.  
3. Make Disinfectant Solution.  Pour 9 parts water into a shallow tub, and then mix in 1 part bleach into the water.       
4. Disinfect Planters.  Sanitize your planters by swirling the planters in the disinfectant solution.  You can also use your sponge to get hard-to-reach areas.  
5. Rinse and Dry.  Rinse your pots with clean water and allow them to dry.  Now you are ready to plant your new seeds! 

Get Free Mosquitofish

Photo: Mosquito Fish (Gambusia affinis) by Arizona Aquatics Garden

The dreaded mosquitos are back!  With the rising rates of foreclosures, more swimming pools, spas and ornamental ponds are being neglected, providing mosquitos the perfect breeding ground.  Did you know that mosquitos only need a few tablespoons of water to complete a life cycle?  An unmaintained swimming pool or spa is an ideal source for more than 1 million mosquitos that may go on to become infected with West Nile virus, and infect people within a 5 mile radius!

In order to control the mosquito population, Gambusia affinis a.k.a. "mosquito fish" have been introduced to these isolated stagnant bodies of water.  Mosquitofish are live bearing freshwater minnows related to guppies.  Adult mosquitofish measure 1 to 2 inches in length, and can eat 500 mosquito larvae a day!  They also eat wind-blown organic debris at the surface of the water.

To get free mosquitofish, check with your local Mosquito and Vector Control Associations.
Contra Costa County's Mosquito and Vector Control District are giving away free mosquitofish to its residents.  They are available for pickup at the District's office located at 155 Mason Circle, Concord, CA Monday through Friday (except Holidays).

Contra Costa residents can also report neglected swimming pools here.

If you cannot get free mosquito fish in your area, you can purchase them online at Arizona Aquatics Garden.

Important: Please do NOT release any live mosquitofish in open waters.  It is against the law to do so, and may disrupt the ecological balance in natural habitats.

Plastic Shopping Bag Greenhouse

Photo: Two transplant flats are placed side by side inside a Target plastic shopping bag.  

The handles are tied on the side.

You can easily start seedlings outdoors by growing them in individual greenhouses made out of old plastic shopping bags.  

The seeds in my outdoor garden were taking a long time to germinate so I decided to start some more seedlings in pots.  To accelerate the germination time, I transformed the pots into greenhouses by wrapping them in old shopping plastic bags and tying them shut.  I placed the wrapped pots in a sunny location, and checked the bags once a day to make sure the soil was still moist and to see if anything had sprouted.  

These shopping bags make a significant difference.

Early Corn Germination Times
Method                                                                        Days to Germination
Burpee Seed Starter Kit (indoors)................................. 4
Plastic Shopping Bag Greenhouse (outdoors)...............5
Direct Seed Planting in Garden (outdoors)...................13

To check out my other germination tips and methods click here.