Category Archives: frog pond

Backyard Croakfest

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My backyard frogs are having a croakfest. It’s been a rainy winter in San Francisco and they are unusually happy.  They are generally invisible when they sing, but  this year they’ve been very brave. They are Pacific Chorus Frogs and they’re only 2-3 inches but you’d never know it from the racket they make.

The croaking starts mid winter when I here random calls coming  from different nearby yards where the males go off to explore. Around February they start heading back to the pond of their birth. Each male stakes out territory around the pond and they all begin calling in earnest. As soon as one starts, the others join in and if it’s warm and wet they can go on for hours. I’ve never seen them actually fight but I have seen them push each other and it’s pretty comical. The females have no trouble finding them and pretty soon eggs are laid.

I keep a large aquarium set up for them as well as the pond and after the tadpoles hatch and start to grow I cover it with wire mesh to keep them safe from the raccoons. Raccoons will eat every last tadpole if they can, so it’s important to find a way to keep them safe. Some people put up electric fences to keep them out, others cover their ponds with barriers. I recently have changed my pond from a sloping free-form plastic lined pond to a 24” deep galvanized steel livestock water trough. The straight sides keep the raccoons from wading in and I think it helps protect the tadpoles.

Every year I worry that the frogs will bother the neighbors but I’ve gotten nothing but interest and appreciation from everyone that hears them. Nature is a gift especially in the city. I try to encourage others to create native habitats, frog ponds or otherwise.

Having a backyard frog pond isn’t hard but it does take some planning and perseverance. It’s important to create a habitat with lots of hiding places and it may take several years of tadpoles before you get enough survivors to breed. I surround the pond with as many wetland native plants as I can, edging the pond with heavy pots full of natives to line the pond. I have a smaller stainless water trough filled with sedges and marsh plants to make plenty of hiding places.  Some good native plants to try are Scirpus, Seep Monkey Flower, Sedges and Marsh Speedwell just to name a few.  To prevent mosquitoes I use mosquito dunks. The dunks are safe for tadpoles, insects and frogs. You can’t use fish to eat the larvae, they will eat the tadpoles too.

I have several more posts on frog ponds, I recommend the links below to help you find the right plants: Las Palitas Nursery,

Calscape Bog Plants

More on starting a backyard native frog pond…

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Another view of the pond. I'd love to get rid of the big flax plant in the back (it's not native) but the frogs hide out in it and stay safe from the marauding coons.

My backyard pond has gotten overgrown but this is what the frogs like best. I’d love to get rid of the big flax plant in the back (it’s not native) but the frogs hide out in it and stay safe from the marauding coons.

Last week I got a lot of interest in my backyard frog pond posting so I thought I’d elaborate with more photos and information. Having a backyard frog pond is a really a fun way to bring nature into your life. There’s nothing like the sound of frogs in the spring and who would have thought it possible to have have frogs in San Francisco? If it can happen here, it can probably happen in your backyard. It’s really not that difficult to set up, the main thing to remember is you’re creating a habitat, not just a pond.

Here's a Pacific Chorus frog singing his heart out.
Here’s what a Pacific Chorus frog looks like singing his heart out.  As loud as they are I rarely see them, they are tiny and they like to hide.
Here's the 60 gallon aquarium that I put the tadpoles in to keep them safe. I have a wire cover that I secure with heavy rocks.

Here’s the 30 gallon aquarium that I put some of the tadpoles in every season to ensure the raccoons don’t eat them all. I have a wire cover that I secure with heavy rocks.

Ponds also attract dragonflies that will lay eggs in the pond (they will eat tadpoles and eggs) Adult Dragonflies are carnivorous and love to eat mosquitoes.

Ponds also attract dragonflies that are nice to have around. One of their favorite foods is mosquitoes.

A frog feels right at home on a native monkey flower plant (mimulus)

A frog feels right at home on a native monkey flower plant (mimulus)

The key to a successful habitat is providing a healthy natural environment that has everything your frogs need to survive. You may wonder why grow native plants–won’t any pond plant do? The best reason to grow natives is because they have evolved  along with the local animals and are perfectly adapted to each other. They are made for your particular weather conditions, soil and seasons. Natives attract the right bugs, birds and animals that live in your area and they naturally provide them with food and shelter. They are low maintenance and require little fertilizer, pesticides, or even attention.  It’s true the water loving native pond plants  will need  you to water them unless you have a naturally wet backyard, but they will be easier to grow and less invasive than other plants you find a nurseries. I learned the hard way to stay away from water hyacinth and duckweed, two nasty invasive plants that will choke the life out of anything else that wants to live nearby.

Here are some easy to grow natives…

Cow Parsnip a native perennial that has giant 12" leaves and flower stalks that can get 8' tall. It's easy to grow and can tolerate dry or wet conditions.

Cow Parsnip a perennial that has giant 12″ leaves and flower stalks that can get 8′ tall. It’s easy to grow and can tolerate dry or wet conditions.

Monkeyflower (mimulmus) is a native that likes to have wet roots. I grow it in pots around the pond and in the pond. There are many varieties of varying size leaves.

Monkeyflower (mimulmus guttatus) likes to have wet roots. I grow it in pots around the pond. It spreads easily and has yellow flowers.

Scirpus is another native that likes to have wet roots. You can put it right in the pond.

Scirpus is another native that likes to have wet roots. You can put it right in the pond or in pots around the pond.

Here's a reason to plant natives: You'll attract crazy bugs like this native Green Sweat Bee on a California poppy.

Here’s a reason to plant natives: You’ll attract crazy bugs like this native Green Sweat Bee on a California poppy.

California Bee plant (Scrophularia californica) grows in 2-31/2' high clumps that pollinators love. It's an easy plant to add around the borders, it attracts insects and does well with or without water.

California Bee plant (Scrophularia californica) grows in 2-3 1/2′ high clumps that pollinators love. Add it around the borders, it spreads easily  and attracts insects. It does well with or without water.

Sedges (Carex) such as this wetland example are perennials that grow in clumps.

Sedges (Carex) such as this wetland example are perennials that grow in clumps.

Currants (ribes) are spiky border plants that do well with or without water.

Currants (ribes) are spiky border plants that do well with or without water and flower in the spring.