North America Non-native Plant

Boldingh’s Dodder

Botanical name: Cuscuta boldinghii

USDA symbol: CUBO

Life cycle: perennial

Habit: vine

Native status: Non-native, reproduces and persists in the wild in Puerto Rico  

Boldingh’s Dodder: An Unusual Parasitic Plant in Puerto Rico Meet Boldingh’s dodder (Cuscuta boldinghii), a rather unusual plant that’s quite different from your typical garden perennial. This curious species belongs to the dodder family, a group of plants known for their unique parasitic lifestyle that sets them apart from nearly ...

Boldingh’s Dodder: An Unusual Parasitic Plant in Puerto Rico

Meet Boldingh’s dodder (Cuscuta boldinghii), a rather unusual plant that’s quite different from your typical garden perennial. This curious species belongs to the dodder family, a group of plants known for their unique parasitic lifestyle that sets them apart from nearly every other plant in your garden.

What Makes Boldingh’s Dodder Special?

Boldingh’s dodder is classified as a perennial forb herb, but don’t let that fool you into thinking it’s like other herbs you might know. This plant lacks significant woody tissue and has a growth habit that’s distinctly different from your average garden plant. What makes it truly unique is its parasitic nature – it depends on other plants for survival rather than producing its own food through photosynthesis like most plants do.

Where You’ll Find It

Currently, Cuscuta boldinghii has been documented growing in Puerto Rico, where it’s considered a non-native species that was introduced and now reproduces spontaneously in the wild. The plant has managed to establish itself and persist in Puerto Rican ecosystems without human intervention.

Should You Grow Boldingh’s Dodder?

Here’s where things get interesting – and a bit complicated. While Boldingh’s dodder isn’t classified as invasive or noxious (that we know of), its parasitic nature makes it an unlikely candidate for most garden settings. Here’s why:

  • It requires host plants to survive, potentially weakening or damaging them
  • Its growth habit is unpredictable and difficult to control
  • It offers minimal ornamental value compared to other garden plants
  • As a non-native species, it doesn’t provide the same ecological benefits as native alternatives

Growing Conditions and Care

If you’re in a tropical climate similar to Puerto Rico’s (likely USDA hardiness zones 10-11), Boldingh’s dodder would theoretically survive in warm, humid conditions. However, because of its parasitic nature, growing this plant means accepting that it will attach to and potentially stress other plants in your garden.

The plant doesn’t require traditional care like watering or fertilizing since it obtains what it needs from its host plants. This hands-off approach might sound appealing, but the trade-off is the potential impact on your other beloved garden plants.

Better Alternatives for Your Garden

If you’re looking for unique, low-maintenance plants for a tropical garden, consider exploring native Puerto Rican species instead. Native plants offer several advantages:

  • They support local wildlife and pollinators
  • They’re adapted to local growing conditions
  • They contribute to ecosystem health
  • They often require less maintenance once established

The Bottom Line

While Boldingh’s dodder is certainly an interesting botanical specimen, it’s not the best choice for most garden situations. Its parasitic lifestyle and non-native status in Puerto Rico make it more of a curiosity than a garden asset. If you encounter this plant in the wild, it’s worth observing and appreciating its unique adaptations, but you’ll likely find more rewarding options for your garden among native plant species that can thrive without depending on their neighbors for survival.

Boldingh’s Dodder

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Solanales

Family

Cuscutaceae Dumort. - Dodder family

Genus

Cuscuta L. - dodder

Species

Cuscuta boldinghii Urb. - Boldingh's dodder

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA