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My daughters love fresh grapefruit, and winter is the season when this fruit is at its best. Instead of throwing away the rind, we decided to make a bird feeder. This is a great winter project for the family.

PHOTO: The supplies needed for the project.

The grapefruit sections have been cut and eaten; the rind is ready to become our bird feeder.

To make a grapefruit bird feeder you will need:

  • Half a grapefruit rind (you can also use an orange)
  • Three pieces of yarn, each cut about 18 inches long
  • A knife, skewer, pointed scissors, or other sharp tool
  • Birdseed

First, eat the grapefruit and drain the remaining liquid. Then, use the skewer or knife to poke three holes in the grapefruit. They should be about half an inch from the top edge and spaced evenly around the circumference. (Some people do this with four strings, but I find that using three strings makes it easier to balance the fruit.)

Push a piece of yarn through each hole and tie it off.

PHOTO: Skewering the grapefruit rind.

Hold the grapefruit firmly with one hand while you poke the skewer through the rind. Be careful not to poke your finger!

PHOTO: Tying yarn to the grapefruit to hang it.

Pull 2-3 inches through the rind and tie the short end to the longer strand.

Hold the grapefruit up by all three strings and adjust the length of the strands so the fruit is not tipping. When it is balanced, knot the strings together about 4 or 5 inches from the top. (The ends will probably be uneven, and that is all right.) Make a loop knot with those top ends, so you will be able to hang it from a branch. 

PHOTO: The final product.

Our grapefruit bird feeder is balanced, full of seed, and ready to hang outside.

Finally, fill the fruit with birdseed and hang it outside for your feathered friends to enjoy. If you like, you can add a little suet, but you may find it doesn’t stick well to the wet fruit. Here in the Chicago area, you’ll probably find that most of your winter guests are black-capped chickadees, nuthatches, dark-eyed juncos, common redpolls, and downy or hoary woodpeckers, who balance their primary diet of insects and grubs with bit of suet and sunflower seeds.

One more thing: Make sure it’s tied to the branch firmly so that your local (determined) squirrels — who will also find this bird feeder appealing — don’t knock it down.

Don’t worry if you don’t have any visitors the first few days after you’ve placed your feeder. It can take up to two weeks for birds to discover their new food source, but once they do, they tell all their friends in the neighborhood.

PHOTO: Grapefruit birdfeeder hung from a snow-covered fir.

The final product is ready for visitors.

What is birdseed?

You probably know that if you plant birdseed, you won’t grow a bird. And there is no such thing as a birdseed plant. So what plants make birdseed? What we call “birdseed” most commonly comes from two sources: millet, which is a grass, and sunflower. Other seeds used to feed birds include thistle, safflower, cracked corn, and sorghum seed, which is also called milo. Some birds have a preference for certain kinds of seeds, so bird lovers stock their feeders with seeds to attract their favorite birds and keep them visiting the feeder.

After you hang your bird feeder, take some of the seed and plant it to see what grows. Maybe you can grow your own food for the birds this year!


©2014 Chicago Botanic Garden and my.chicagobotanic.org

Meet Naranjilla

(Solanum quitoense)

Kathy J. —  July 23, 2013 — Leave a comment

We get a lot of questions about one particular plant in the Grunsfeld Children’s Growing Garden: Naranjilla (pronounced nahr-ahn-HEE-yah). It’s easy to see why.

PHOTO: The naranjilla plant has thick green leaves that are about 10-12 inches long, 8-10 inches wide, with deeply serrated edges. Leaves have dark purple hairs on the veins and petioles.

You can find this naranjilla (Solanum quitoense) in Bed #10 in the Growing Garden.

This attractive plant has large, thick, green leaves, is about 10–12 inches long and 8–10 inches wide, with deeply serrated edges, and is completely covered in tiny, purple hairs (which are not really hairs—in the botanical world they are called “tricomes”). It is native to Ecuador and other South American countries.

There is more to notice about this intriguing plant than its gorgeous coloring, interesting texture, and striking presence. First, the naranjillas in this small garden bed, number 10, were put there for a reason. All but one of the plants in this bed are in the nightshade family, Solanaceae. This family includes tomato, eggplant, potato, and petunia. Naranjilla is cousin to these more familiar plants.

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Upon closer inspection, it’s easy to see how these plants are related.

When you’re in the garden, take a look at the flowers on these plants. You will see the similarities that characterize plants in the nightshade family. Notice that they all have five petals that are fused so that they look like a funnel with five lobes. You’ll easily be able to pick out the one plant that does not belong in the family.

PHOTO: close-up of a bright pink petunia.

See how this ‘Pink Dreams Fuseable’ petunia (Petunia x hybrida ‘Pink Dreams Fuseable’) has five petals fused together, so it is like one continuous petal? You’ll find the same bloom design on tomato and other nightshade flowers.

The naranjilla won’t bloom until much later in the summer, and when it does you’ll recognize the similar flower shape. Naranjilla means “little orange” in Spanish, because the fruits are small, yellow, and spherical like little oranges. Unfortunately, our growing season in Chicago is not long enough for naranjilla plants to produce the sweet fruits, which are juiced for beverages in Ecuador.

Another interesting thing about the naranjilla—a detail that separates it from other members of the family—is that the leaves look soft and fuzzy, but they can grow sharp thorns along the veins. As you might expect, the thorns discourage large animals from eating the leaves. They are not as sharp and menacing as rose thorns, but you wouldn’t want to stroke a naranjilla leaf that bears thorns.

PHOTO: this close up of a naranjillo leaf shows sharp thorns sticking up from the veins of the leaf.

This naranjilla leaf, which is growing in a container on the Learning Center deck, is covered in thorns. There are no thorns on the plants in the Growing Garden. (The white things on this leaf are stamens fallen from the nearby “bunny tail” grass.)

Stop by the Growing Garden at the Learning Campus from noon to 4 p.m. Monday through Friday, and 10 a.m. to 4 p.m. on weekends this summer to see our naranjilla plants and enjoy free family drop-in activities.

Please note: the Growing Garden is closed on weekday mornings while Camp CBG is in session.


©2013 Chicago Botanic Garden and my.chicagobotanic.org

Growing a Bean in a Bag

Or, How to Train Your Plant Part 2 1/2

Kathy J. —  May 26, 2013 — Leave a comment

Garden blog followers may remember that in “How to Train Your Plant” I demonstrated a way to grow a bean seed in a plastic bag to test geotropism. I started working on that project around Thanksgiving week last year. At that time, I started a few bean bags just to see what would happen. I kept one seed growing in the bag all winter, adding water as needed.

PHOTO: A ziptop bag was used as a container to grow a bean plant. Roots, stem, leaves, and the remains of the original seed are visible.

The bean plant grew for five months, leaning toward the window in my office.

The plant produced a white flower about a month ago. I should have taken a picture. Now this week I discovered a seedpod growing where the flower had been! In the picture, you can see the wilted flower petals still hanging from the tip of the reddish colored pod. Botanically speaking, this is the fruit of the plant, even though you might not think of beans as fruit in your diet.

PHOTO: a red bean pod, about 2 and a half inches long is attached to the stem of the plant.

The red fruit was hidden under the leaves.

So if you try this activity, and you stick with it for six months, you, too, may be rewarded with a little treasure!


©2013 Chicago Botanic Garden and my.chicagobotanic.org

Have you heard the sounds coming from nearby lakes, ponds, and puddles this month? The American toads are singing!

PHOTO: female toad looking directly at the camera

This female American toad may be listening for the enchanting song from a handsome male toad.

Every spring, the toads emerge from hibernation in wooded areas and hop to the nearest standing water to breed. The sound you hear comes from the males, who are singing to attract a mate. You’ll hear the sound of hundreds of toads at the Kleinman Family Cove for the next week or so, maybe longer.

The toads will pair up and lay a string of eggs in shallow water where it is warmest and rich in food for their offspring. After laying eggs, the adults will return to the woods or shady gardens to look for food, leaving their babies to fend for themselves.

PHOTO: the toad pair are together in the water with a string of black eggs she has laid around the algae.

The black lines of dots in the water are strings of eggs that were laid by the toad on the right.

The black embryo inside each egg will grow into tiny tadpoles and hatch in about a week. They will grow and develop into half-inch toadlets over the next few weeks. Then they will leave the water and join their parents in the shady gardens and woods. With any luck, some of them will survive the next two years, developing to full maturity, and return to the Cove to breed.

This is the only time of year to hear the toads singing, so visit the Cove this month. If you visit over the next four weeks, maybe you’ll see some little black tadpoles swimming in the water.

Please resist the urge to collect them to take home. You won’t be able to provide enough of the right kind of food for a growing tadpole or toadlet, and they will die. Watch them grow up successfully in their natural habitat at the Cove throughout the month of May and early June instead!


©2013 Chicago Botanic Garden and my.chicagobotanic.org

Make a Bird-Nesting Bag

Kathy J. —  March 16, 2013 — 1 Comment

Spring is here and the birds are returning from their winter homes. Some birds fly through the Chicago area to their nesting habitats up north, while others return and stay in the area.

Spring is the season for laying eggs, because it gives the juvenile birds all summer to mature and become strong before they need to migrate in the fall. Also, as spring turns to summer, the growing chicks require more food. The trees grow leaves, insects hatch, fruits ripen, and other food sources become more plentiful. The birds’ habits are perfectly synchronized with the seasons. 

At this time of year, recently returned birds will be looking for material to build a nest and lay eggs. You can provide some bling for a lucky bird family with a few things you have around your home.

You will need items including these:

  • A plastic netting or mesh bag, like the kind oranges and apples are sold in
  • Scraps of yarn or strips of fabric cut 1/4 inch wide and at least 6 inches long (longer is fine)
  • Optional — dryer lint, metallic thread, any other attractive loose materials
PHOTO: supplies to build a nesting bag

Let’s put this empty apple bag and some leftover fabric scraps to good use!

Put all of the scrap materials into the mesh bag. Tease out the ends of the material through the holes in the netting all around the bag so it looks like a bundle of loose stuff. Tie the top of the bag. Hang the bag securely on a tree branch where a bird can perch and pluck pieces of material from the bag.

PHOTO: The finished nesting bag

Wall art or condo furnishings? Hang your bag outside and watch for birds!

Now you will be ready for International Migratory Bird Day, which is Saturday, May 11, this year. Watch the bag for signs that a bird is using the material. Look around your neighborhood for nests to see if any bird used the materials to build its nest. And have a happy bird day!

PHOTO: our bird nesting bag in situ

Let’s see where our fabric scraps end up this spring…

©2013 Chicago Botanic Garden and my.chicagobotanic.org