The Nano Nursery Carnivorous Plant Encyclopedia: Start Here

Part 1 · Nano Nursery’s Encyclopedia of Rare Carnivorous Plants

A sundew leaf can look as though it is covered in tiny jewels. A pitcher can resemble a painted cup. Beneath a bladderwort’s flowers, traps small enough to escape casual notice are catching prey. These plants reward a closer look—and the more closely you look, the more different they become.

Welcome to Nano Nursery’s growing encyclopedia of rare carnivorous plants. This series explores the plants behind the labels: how they live, how to recognise them, what makes each group distinctive, and how those differences affect the way we grow them.

We will move from the major genera into their growing groups, individual species, and documented hybrids and cultivars. This page is your starting point. The encyclopedia will expand over time; the existing care guides linked below are available now.

Explore this introduction

• What makes a plant carnivorous?
• Find your plant group
• Explore by trap type
• Why subtypes matter
• Start with your growing conditions
• What does “rare” mean?
• Read the existing care guides

What makes a plant carnivorous?

Carnivorous plants obtain nutrients from captured prey. This helps them live in places where important nutrients are difficult to obtain from the surrounding environment. Their traps are part of a nutrient-gathering strategy, with different plants using different ways to catch and process food. Kew’s introduction to carnivorous plants explains this connection between habitat and prey capture.

Carnivory has evolved independently in different plant lineages. A shared trapping method does not mean that two plants are close relatives or need the same care. The University of Bonn Botanic Gardens’ overview introduces that diversity.

Throughout this series, we will keep two questions together: how does this plant live in nature, and what does that tell us about growing it? A spectacular trap makes a wonderful introduction. Its habitat and seasonal cycle help explain the rest of the plant.

Find your plant group

The following sections are a map of the series. Dedicated encyclopedia chapters are forthcoming; this introduction does not imply that every profile is already available.

Drosera — sundews

Our sundew chapters will explore pygmy, tuberous, tropical, subtropical and temperate growing groups, along with rainforest sundews, the petiolaris and indica complexes, fork-leaved forms and individual species such as Drosera regia. We will explain where the groups overlap and where a species needs its own treatment.

Start now with A Practical Guide to Growing Drosera (Sundews). Use the exact plant name alongside the broad group description when choosing further care advice.

Pinguicula — butterworts

The butterwort series will distinguish seasonal succulent rosettes, bulb-like resting buds, plants that retain carnivorous leaves, and temperate and alpine growing groups. It will also cover species identification, flowers, hybrids and propagation.

Seasonal leaf changes can be striking. Many Mexican butterworts alternate between carnivorous leaves and a more succulent growth form, but that pattern does not apply to every species. The ICPS Mexican Pinguicula guide discusses both this variation and the importance of matching watering to growing conditions.

Nepenthes — tropical pitcher plants

Our Nepenthes chapters will introduce lowland, intermediate, highland and ultra-highland growing categories, then examine species, hybrid parentage, climbing growth and pitcher development. These labels will be treated as starting points for understanding a plant, with species-specific guidance taking priority.

We will also explore the questions collectors ask after bringing a plant home: how to assess new growth, what changes during establishment, and what to investigate when leaves appear but pitchers do not.

Dionaea and Sarracenia

The Venus flytrap series will centre on Dionaea muscipula, its cultivars, seasonal growth and propagation. The Sarracenia series will work through species and species groups, hybrids, identification and the annual growing cycle.

For immediate flytrap care, read How to Grow Venus Flytraps: A Beginner’s Guide.

Utricularia and Genlisea

These chapters will bring attention to plants whose traps are easily overlooked. The planned bladderwort coverage includes terrestrial, aquatic, epiphytic, seasonal and rock-growing groups. The corkscrew plant chapters will explore Genlisea diversity and the relationship between its unusual traps and habitat.

Each group will have its own route through the encyclopedia, so readers can follow an interest in flowers, hidden traps, habitat or cultivation.

Specialist genera and unusual lineages

Further chapters will cover Cephalotus, Heliamphora, Darlingtonia, Byblis, Drosophyllum, Aldrovanda, Roridula and Triphyophyllum.

Our evidence-focused chapters will examine Brocchinia, Catopsis, Philcoxia, Triantha, and the plants discussed under Paepalanthus and related names. For these topics, we will specify which species has been studied and distinguish demonstrated findings from unresolved questions.

For example, research published in 2021 demonstrated prey-derived nutrient uptake in Triantha occidentalis, which catches insects on sticky flowering stems. That finding concerns a particular species; it is not a reason to assume that every sticky-stemmed plant is carnivorous. Read the original Triantha study.

Explore by trap type

Trap structure offers another way into the collection:

• Snap traps: closing traps, represented by the Venus flytrap and the aquatic waterwheel plant.
• Sticky traps: adhesive surfaces, familiar in sundews, butterworts and rainbow plants.
• Pitfall traps: pitchers or similar structures that capture and retain prey.
• Bladder traps: the small suction traps of bladderworts.
• Lobster-pot traps: passages that make escape difficult, exemplified by corkscrew plants.

This is an introductory classification. Some traps combine features, and the detailed chapters will explore those exceptions. See the Carnivorous Plant Society’s trap guide for an illustrated explanation.

Why subtypes matter

“Subtype” is a useful everyday word, but a plant label can describe several different things. A scientific name identifies the plant. A growing-group label helps describe its environmental needs. A cultivar name identifies a cultivated selection. Habitat words describe where or how it grows.

In this encyclopedia, those details will appear separately. You should be able to find a plant by the name on its label without having to guess whether a word refers to its ancestry, appearance, habitat or care.

The International Carnivorous Plant Society provides separate guides for different sundew, butterwort and bladderwort groups. That is a useful reminder that a genus-wide care instruction can be too broad. Its growing-guide index is a supporting resource for this series.

When using a profile, begin with the identity, then check the growing group and seasonal behaviour. Read any species-specific exception before changing watering, light or temperature. Keep the complete label with the plant, even when the name is long.

Start with your growing conditions

Before choosing a rare plant, make a short record of the space you can offer it:

• Where will it grow: outdoors, at a window, under lights or in a controlled growing space?
• What are the usual daytime and overnight temperatures, including seasonal extremes?
• How much direct sunlight or artificial light reaches the actual growing position?
• What water source will you use, and how will you manage drainage?
• Can the space accommodate the plant’s mature size and seasonal changes?

These questions give the individual care guides something concrete to work with. “Indoors in Australia” is too broad a description to explain a plant’s environment. A heated room, a cool windowsill and a warm enclosed growing space can require different decisions.

Many familiar carnivorous plants need a growing medium quite different from ordinary garden soil. The United States Botanic Garden’s cultivation overview notes that requirements vary and that Nepenthes typically need an open medium. Our species guides will explain these choices in more detail.

For Australian seasonal care, read Venus Flytrap Dormancy: What Australian Growers Need to Know. Follow the guidance for the actual plant and its conditions rather than treating an overseas calendar as a universal timetable.

Check the plant’s stage, too

A plant supplied in sealed tissue-culture gel needs an establishment pathway appropriate to that format. Before opening a culture or applying advice intended for an established pot, read our Tissue Culture Plant Care Guide.

Record the arrival date, keep its identity with it and take a clear starting photograph. A short record of new leaves, seasonal changes and adjustments will make later observations more useful.

What does “rare” mean?

In this series, we will always try to explain the context of rarity. A plant may have a restricted natural distribution, be uncommon in cultivation, or be difficult to find in a particular market. Those are different statements and need different evidence.

A price or a dramatic trade name will not be treated as proof of conservation status. Where a profile discusses a threatened plant, we will identify the assessment and its date. Where information is incomplete, the entry will say so.

Our collecting approach is to favour documented, responsibly propagated plants and preserve their identity. Ask about origin and propagation history, retain supplier information, and avoid treating an unverified label as a confirmed identification. For a collector, good records become part of the value of the collection.

Read the existing Nano Nursery care guides

While the encyclopedia chapters are being developed, these published articles provide practical starting points:

• Carnivorous Plant Care Guide — an introduction to everyday care.
• Why Carnivorous Plants Need Rainwater, RO or Distilled Water — choosing a suitable water source.
• When and How to Repot Carnivorous Plants — matching repotting choices to the plant.
• Why Pinguicula Change Shape Through the Year — understanding seasonal growth forms.
• Pinguicula medusina & heterophylla: Care and Dormancy Guide — a species-focused example of seasonal care.

Common questions

Is this already a complete species encyclopedia?

No. This is the starting page of a growing reference. We will add genus overviews, subtype guides and individual profiles, with links to new entries as they are published.

Does inclusion mean Nano Nursery sells the plant?

No. The encyclopedia’s scope is wider than the shop catalogue. An article’s inclusion does not indicate current stock or a planned release.

Which article should I read first?

If you already have a plant, begin with its full name and the relevant care guide. If you are exploring, choose a genus or trap type above, then note the topics you would like to follow as the series develops.

Will the guides include sources?

Yes. Entries will link to supporting references and distinguish research findings from cultivation observations. Where published accounts disagree, the aim is to explain the difference and its practical significance.

Next in the series: What Makes a Plant Carnivorous? Traps, Digestion and Evolution. This forthcoming chapter will look more closely at how plants capture prey and benefit from it.

Research checked 22 September 2026. This introduction is a guide to the series; use the relevant species and establishment guidance for individual plant care.