Life & Leisure

Plants & Gardening Trivia

Flowers, trees, houseplants and vegetables, plus the botany that explains them. This category is for gardeners, plant collectors and anyone who's wondered why a tomato is a fruit.

Every answer is typed, and each question comes with a short fact about the plant.

  • 205questions
  • 67easy
  • 59medium
  • 79hard

What's covered

  • Flowers
  • Trees
  • Botany
  • Vegetables
  • Houseplants
  • Gardening

Plants & Gardening Trivia: sample questions

Answer in your head, then tap to check. In the game you type it.

  1. easy

    What is the name of the tall tropical grass whose crushed stems produce most of the world's table sugar?

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    Sugar cane

    Brazil grows more sugar cane than any other country, using much of its harvest to produce ethanol fuel as well as sugar.

  2. easy

    Which flower is the national floral emblem of England, and is also the flower most commonly given as a gift on Valentine's Day?

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    Rose

    The red-and-white Tudor rose was created by Henry VII to unite the warring houses of Lancaster and York after the Wars of the Roses.

  3. medium

    What general term describes plants such as aloe, echeveria, and jade plant that have thick, fleshy leaves or stems adapted to store water in their tissues?

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    Succulent

    Cacti are technically succulents too — they just store their water in swollen stems instead of leaves.

  4. medium

    What term describes a plant that lives for more than two growing seasons, typically flowering and regrowing repeatedly year after year?

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    Perennial

    Trees, shrubs, and all gymnosperms are technically perennials, alongside familiar garden favorites like peonies and hostas.

  5. hard

    What horticultural technique involves pruning and training a fruit tree so it grows flat, in a formal two-dimensional pattern, against a wall, fence, or wires?

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    Espalier

    In walled medieval European gardens, fruit trees were pruned flat against south-facing stone walls so the warmth the stone radiated overnight could ripen fruit in otherwise-too-cool climates.

How Kenna works

  • Type the answer

    No multiple choice. Typos and near-misses are forgiven automatically.

  • Beat the clock

    Answer fast for a speed bonus — or switch the timer off for a relaxed round.

  • Learn something

    Every question ends with a short fun fact that expands on the answer.

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