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The Global Insight

What type of plant will the monarch butterfly feed on

Author

Ava Hudson

Updated on April 20, 2026

Milkweed is the host plant for the monarch butterfly. Without milkweed, the larva would not be able to develop into a butterfly. Monarchs use a variety of milkweeds. Monarch larvae ,or caterpillars, feed exclusively on milkweed leaves.

What do monarch butterflies eat besides milkweed?

Most enthusiasts have found most success with butternut squash as a substitute for milkweed leaves. Some of the other vegetables that have successfully been fed to Monarch caterpillars in the last instar (last few days) are cucumber, zucchini, and pumpkin.

What is the host plant for monarch butterfly?

Milkweed is the sole host plant to the monarch butterfly’s caterpillar, but keeping milkweed as part of our landscape is important to more than just monarch butterflies. Here some species that also use milkweed in various ways.

What type of milkweed is best for monarchs?

Three species have particularly wide ranges and are good choices in most regions: common milkweed (Asclepias syriaca), swamp milkweed (A. incarnata), and butterflyweed (A. tuberosa).

What can I feed monarch caterpillars?

Monarch larvae ,or caterpillars, feed exclusively on milkweed leaves.

How many milkweed plants do I need?

For gardens, we recommend that you plant about 20-30 milkweed plants per 100 square feet. Milkweed plants should be spaced 1 foot apart, placed in clusters of 3-4 milkweeds.

Will monarch caterpillars eat plants other than milkweed?

Actually, no. Monarch caterpillars do only eat plants in the Milkweed family (Asclepias spp), so if we want to help them out in our wildlife gardens, we still need to add these plants to our gardens.

Is Lantana the same as milkweed?

Growing in dry fields, open prairies and hillsides, its appearance is similar to Lanceolate Milkweed (Asclepias lanceolata) except for conspicuous flowers and hairy stems. … Occasionally, the flowers of a Lantana are confused with the Butterfly Weed.

Do Monarchs eat all types of milkweed?

Although Monarchs have preferences of some varieties over others, there are many different species of milkweed plants that Monarch caterpillars will gladly gobble up. … One great thing about Milkweeds is that they double as a host AND nectar plant.

What happens when Monarch caterpillars run out of milkweed?

Running out of milkweed leaves this time of year is NORMAL. This is natures way of insuring fresh leaves for the next generation. This is the most important generation as it will migrate to Mexico. You WILL have some caterpillars that will turn to chrysalis.

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Will monarch caterpillars eat milkweed stems?

Milkweed Stem Cuttings are the ‘Just Right Goldilocks Option’ for Feeding Hungry Monarch Caterpillars.

How big does milkweed get?

This milkweed grows to about 1.5 meters(5 feet) tall, usually occurring in clusters of stout stems. It has rhizomes and quickly forms colonies. Leaves are 15-20 centimeters (6-8 inches) long and 5-9 centimeters (2-3.6 inches) wide. They are somewhat thick with a prominent midrib beneath.

How many caterpillars can one milkweed plant support?

The Milkweed in Picture #3 is a southern variety and is a very nice specimen. Each stem has about 10 leaves. A 4 foot plant this size will feed only 5 Monarch caterpillars! Each monarch caterpillar will consume 20 or more large leaves.

When can I cut down milkweed?

Cut back milkweed stalks in the late fall or winter, after they have produced seed pods and these seeds have had time to mature. Leave at least 6 inches of stalks to provide habitat for insects throughout the winter. Leaving stalks also gives you a marker so you know where your milkweed patch is.

Where do monarch caterpillars go at night?

When getting ready for pupation, the full-grown caterpillars usually wander off the plant some distance to find a place to make their chrysalis. During the feeding and growth stage, they just remain under leaves at night.

Do Monarchs eat cucumber?

Although Monarch caterpillars will eat pumpkin, squash, cucumber, and a few related vegetables in captivity, milkweed is their host plant. If you run out of milkweed and your caterpillars are just a couple of days from pupation, you can offer it something like butternut squash to eat. Prepare for orange frass!

Will my milkweed grow back after caterpillars?

Technically it is a perennial, but if you run into issues like I did (no leaves emerging) then re-seed and cut back old foliage. Perennial milkweeds grow back year after year. They provide habitat for traveling Monarch butterflies.

Where is the best place to plant milkweed?

  • Common Milkweed grows well in average garden soil.
  • Swamp Milkweed, as its name implies, will do best in a moist environment, making it great for wet meadows or rain gardens.
  • Tropical Milkweed performs beautifully in hot, humid conditions, and can be grown as an annual in the north.

Do bees like milkweed?

Very fond of milkweed blossoms, bees will desert other flowers when these are available. The plants provide a good nectar flow. Bees discard the pollen. Assuming enough plants are available, milkweeds can bring a good crop of honey.”

Can milkweed spread?

“Common milkweed spreads by rhizomes (underground runners or roots) which is why it can be such an aggressive spreader. By planting it within a fairly dense planting of other native species, you leave minimal room for the rhizomes to travel.”

What grows well with milkweed?

  • Verbena Bonariensis with Any Milkweed Variety. …
  • Blue Tweedia with Dwarf Butterfly Bush. …
  • Purple Salvia with Butterfly Weed. …
  • Mistflower with Shorter Milkweed Varieties. …
  • Butterfly Weed with Tropical Milkweed. …
  • Swamp Milkweed with Swamp Milkweed ‘ice ballet’ …
  • Whorled Milkweed with Spider Milkweed.

Does milkweed have a red stem?

Stem: Downy (hairy), from 60 to 200 cm tall. Umbels: Red or purplish-pink.

What type of milkweed do monarchs lay eggs on?

Female monarchs will lay eggs on all nine milkweed species, but they prefer some over others. Swamp milkweed (Asclepias incarnata) and common milkweed (A. syriaca) averaged the highest number of eggs.

Do monarchs like marigolds?

The marigold is a common summer bedding flower that not only provides nectar for monarchs, but also repels undesirable insects from the garden. … These tall, bright flowers will bloom throughout the summer.

Do Monarch caterpillars eat lantana?

They are: Zinnia, Tithonia, Butterfly Bush, Lantana, and Milkweed(which doubles as a host plant for Monarchs). If you are interested in raising caterpillars to butterflies then you will also want to plant what the caterpillars eat.

What do you feed monarch caterpillars if you run out of milkweed?

Several folks mentioned that by the time the caterpillars get to their fifth instar, or their final stage, before morphing into a chrysalis, they will eat pumpkin and cucumbers. That’s right, folks. See it with your own eyes. “The butterfly on the left was fed with pumpkin during its final instar.

How long can a monarch caterpillar go without eating?

Monarch caterpillars are ravenous eaters. They can survive up to 24 hours without food without negative effects. Beyond that, they would likely begin to starve and die quickly.

Can you hold Monarch caterpillars?

It is safe for humans to hold and touch the Monarch caterpillar but it is not always safe for the caterpillar. When they are young/small they are quite delicate but as they grow it becomes safer for them to be handled. The one time that no caterpillar should be handled is when they are preparing to molt.

How long do Monarch caterpillars eat milkweed?

You may think concerns are exaggerated regarding satisfying Monarch butterflies’ appetites but take a look at the video and realize that Monarch caterpillars–like all lepidoptera–have a voracious hunger, gorging on 200X their birthweight in milkweed leaves in a brief 10 – 14 days.

Will Monarch caterpillars eat seed pods?

Monarch butterflies lay their eggs on milkweed plants so the larvae have a food source once they hatch. The Ohio Department of Transportation is helping to collect milkweed seed pods, with the idea of creating more wildlife habitat in a bid to help agriculture. … Monarch caterpillars only eat milkweed leaves.

What month does milkweed bloom?

Flowers occur in round clusters (inflorescence) about two inches in diameter, and bloom from June through August. Fruit: Milkweeds produce large seedpods (3 to 5 inches long) after flowering. Pale green and covered with bumps, the pods eventually turn brown and split open, releasing up to 200 flat, brown seeds.