What Plants Do Iguanas Hate

Iguanas tend to avoid tough, thick-leaved plants, along with citrus, milkweed, and oleander. However, a plant that is less appealing to eat will not necessarily repel iguanas from your yard, and toxic plants are poor choices solely for pest control. The most practical approach is to replace repeatedly damaged ornamentals and physically protect the vegetables, fruit, and flowers you want to keep.

Why Iguanas Eat Some Plants and Avoid Others

Iguanas can feed on leaves, flowers, fruit, and tender growth. Plant selection can reduce that food supply, but it cannot remove every reason an iguana visits: your property may also provide shelter, basking spots, or nesting sites.

That distinction matters when choosing “iguana-resistant” plants:

Resistant plants are less attractive as food.
Repellent plants would discourage an animal from approaching.
Physical barriers prevent access to the plants you are protecting.

Landscape foliage grazing is mainly an adult-iguana problem. The iguanas eating landscape plants are likely adults, while juveniles tend to eat small animals, including insects, lizards, and birds, according to UF/IFAS Gardening Solutions.

Before replacing a bed, observe it from a distance. Confirm that iguanas are feeding there, identify which plants they repeatedly target, and distinguish feeding damage from digging or animals simply passing through. Missing foliage alone does not establish which pest caused it.

How to Reduce Iguana Damage With Plants and Barriers

Replace plants iguanas repeatedly eat, and physically protect the plants you want to keep.

Citrus, milkweed, and oleander have different garden uses and limitations:

Plant	When It May Fit	Important Limitation
Citrus	An edible landscape where the climate, sunlight, and available space suit the tree	It is not a protective barrier for nearby vegetables or flowers.
Milkweed	A deliberate butterfly-host planting using an appropriate species	Milkweed can be toxic if eaten. Choose it for its ecological role, not as a pest-control hedge.
Oleander	An existing ornamental that may be less attractive to feeding iguanas	Oleander is highly poisonous to people and animals. It is not a sensible new planting solely to discourage iguanas.

Step 1: Choose Suitable Replacement Plants

Match the planting site first. Choose plants suited to its sunlight, drainage, and available mature space. Iguana resistance does not compensate for a plant that cannot grow well there.
Favor tough, thick-leaved plants. This is the leaf type UF/IFAS recommends when modifying a landscape to discourage feeding. Treat it as a selection guide, not a promise that every leathery-leaved species will be untouched.
Replace selectively. Start with ornamentals that are repeatedly stripped rather than removing an entire healthy landscape. Keep plants that remain undamaged and still serve a useful purpose.
Identify each replacement. Retain the plant’s species and cultivar name so you can distinguish successful choices from plants that continue to suffer damage.

Do not assume resistance comes from scent.

Step 2: Plan Edible Beds and Flowering Areas

Avoid adding unprotected favorites. Greens, squashes, melons, hibiscus, roses, and pink pentas are among the plants most attractive to iguanas, according to UF/IFAS.
Separate replaceable ornamentals from crops you actually want. Swapping a repeatedly damaged ornamental can make sense. Giving up a productive vegetable bed usually is not the first choice.
Check the exact identity of flowering plants. A broad common name is not enough to establish resistance.

Do not select a flower for iguana resistance solely from a generic “pentas” label.

Choose flowers for their growing requirements and garden value, and protect valuable specimens where feeding is persistent.

Before buying replacements, decide which plants will remain exposed and which will be enclosed.

Step 3: Enclose Valuable Plants

Choose protection that fits the planting. An individual cage can protect a specimen plant; a screened enclosure is more practical when several crops need protection together.
Cover the routes an animal could use to enter. Check the base, corners, access openings, and upper portions of the enclosure. An open-topped fence is not the same as an enclosed growing area.
Keep foliage away from the barrier. Leave room for growth so leaves and flowers are not pressed against openings where they can be reached.
Secure the enclosure after every access. Close doors or removable panels and check that fasteners remain in place.
Inspect the finished protection. Look for gaps, loose edges, and places where an animal could push underneath. Correct those openings before relying on the enclosure.

Plan access for watering, harvesting, and routine plant care. A barrier that is difficult to open and close is more likely to be left unsecured.

Include elevated growing spaces when assessing vulnerable crops. Iguanas can eat produce grown in balcony gardens.

Step 4: Block Relevant Climbing Routes

Where trees or dock pilings provide climbing access near planted areas, UF/IFAS recommends installing sheet metal around those supports.

Identify the route that actually matters. Use a climbing barrier where access to that tree or piling contributes to the problem, rather than wrapping every tree on the property.
Fit a continuous, securely attached metal band. Avoid loose sections and exposed sharp edges. Have a qualified installer handle difficult dock access or installations that could damage a tree.
Check for bypass routes. Nearby branches, fences, or structures may still provide access even when one support is protected.
Inspect the finished installation. Confirm that the band remains secure and is not cutting into the tree as it grows.

A climbing barrier protects a particular route.

Step 5: Prevent New Digging

An L-shaped wire barrier can help stop iguanas from digging underneath plants and structures.

Check the site before excavating. Have underground utilities located, identify irrigation lines, and avoid damaging major tree roots. Where installation could affect a seawall, foundation, or other structure, get professional help.
Use the barrier preventively. Before burrowing has started, a buried-barrier depth of 24–36 inches can discourage initial digging.
Form the wire into an L-shaped barrier. The buried horizontal portion obstructs an animal attempting to dig underneath the upright section.
Finish the installation. Secure adjoining sections, backfill the excavation, and leave no exposed sharp wire or open trench.
Check the protected edge for new digging. Address gaps or displaced sections rather than assuming the buried wire makes the whole property inaccessible.

What to Do About Established Iguana Burrows

Established iguana burrows typically run 3 to 6 feet deep and can extend horizontally. A shallow barrier may discourage a new entrance without addressing the underground space already present.

Do not treat a burrow beside a foundation, seawall, walkway, or other structure as an ordinary planting hole. If the ground is sinking, cracking, or losing support, have the affected area assessed before attempting to fill it.

For a burrow that does not threaten a structure:

Confirm that it is empty. Do not assume an entrance is unused because no animal is visible. If you cannot establish whether animals are inside, leave it open and obtain wildlife assistance.
Fill only during the day when animals are not inside. Both conditions matter: daylight alone is not proof that the burrow is empty.
Pack a confirmed empty burrow with concrete or sand. Concrete is a permanent addition, so it should not be the automatic choice in a planting bed.
Inspect the finished area for reopening or settling. If excavation resumes or the surface sinks, obtain help rather than repeatedly covering the entrance.

Filling an entrance does not necessarily restore support beneath a damaged structure. Structural concerns need more than surface patching.

Keep your distance from an iguana occupying or guarding an area. Adults may bite, scratch, or strike with their tails when threatened. Plant protection and exclusion are preferable to trying to corner or handle an animal yourself.

How to Tell Whether Your Iguana Plan Is Working

Judge the result by plant damage and access, not just by whether an iguana is still visible somewhere on the property.

Check plants and barriers for these signs that protection is working:

New growth remains intact. Look at recently opened leaves and flowers rather than expecting old feeding damage to disappear.
Enclosures remain closed and undamaged. Check the base, corners, and access panels.
Damage is not continuing inside the protection. If it is, reassess both the entry points and the identity of the pest.
Replacement plants are growing successfully. Poor growth from unsuitable light, drainage, or placement is not evidence of iguana feeding.
Protected edges show no fresh digging. Look for displaced soil or openings around barrier ends.

An iguana basking on a nearby surface does not mean your plant protection has failed.

Avoid expanding a replacement planting until you know the plant performs well in that location. Keep enclosure access convenient, repair damage promptly, and preserve the exact identities of plants that fare well.

If feeding or digging continues despite intact protection, contact your county Extension office or a qualified wildlife professional to reassess the problem. Start with the bed suffering the greatest loss, and expand your approach based on the damage you can actually confirm.

Frequently Asked Questions

What Flowers Do Iguanas Not Eat?

There is no dependable list of flowers that iguanas will never eat. Choose flowering plants for the site rather than assuming that a “resistant” label guarantees protection, and use cages or screened enclosures for specimens you cannot afford to lose.

Do Iguanas Like Bougainvillea?

Do not count on bougainvillea being left alone. Its thorny stems are not a dependable exclusion barrier, so protect a valued specimen with a cage or screened enclosure rather than using it to shield other plants.

What Do Iguanas Hate the Most?

There is no reliable ranking of plants iguanas “hate most.” Tough foliage can make a plant less appealing, but that is a feeding preference, not a guarantee that the animal will avoid the surrounding area.

How Do You Get Rid of Iguanas Permanently?

Plan for ongoing upkeep: keep enclosures secure and repair damage promptly. A lasting approach combines protection of desirable plants, barriers at relevant access points, and management of digging or recurring animal activity. In Florida, captured invasive iguanas cannot legally be released elsewhere, so arrange lawful professional assistance rather than relocating them to another property or natural area.

What problems can iguanas cause around your property?

Iguanas can harm a property by eating landscape foliage and damaging hardscapes or permanent structures. Their feces may be a source of salmonella bacteria, and a threatened adult may bite, scratch, or slap with its tail.