Geranium Trivia Questions and Answers

purple flowers in tilt shift lens

1: What is the common name for plants in the genus Geranium?
A: Cranesbills
B: Sunflowers
C: Tulips
D: Daisies
Correct Answer: A
Explanation: The plants in the genus Geranium are commonly known as cranesbills.

2: How many species are there in the genus Geranium?
A: 122
B: 322
C: 422
D: 522
Correct Answer: C
Explanation: There are 422 species in the genus Geranium.

3: Where is the greatest diversity of Geranium species found?
A: Western Europe
B: Eastern Mediterranean
C: North America
D: South Asia
Correct Answer: B
Explanation: The greatest diversity of Geranium species is found in the eastern part of the Mediterranean region.

4: What type of leaves do Geraniums typically have?
A: Oval leaves
B: Lobed leaves
C: Palmate leaves
D: Needle-like leaves
Correct Answer: C
Explanation: Geraniums typically have palmately cleft leaves, which are broadly circular in form.

5: How many petals do Geranium flowers usually have?
A: Three
B: Four
C: Five
D: Six
Correct Answer: C
Explanation: Geranium flowers usually have five petals.

6: In which type of soil do Geraniums generally thrive?
A: Sandy soil
B: Clay soil
C: Waterlogged soil
D: Any soil, as long as it is not waterlogged
Correct Answer: D
Explanation: Geraniums will grow in any soil as long as it is not waterlogged.

7: How can Geraniums be propagated?
A: By stem cutting
B: By seed
C: By division
D: All of the above
Correct Answer: D
Explanation: Geraniums can be propagated by semiripe cuttings in summer, by seed, or by division in autumn or spring.

8: What do the larvae of brown-tail, ghost moth, and mouse moth have in common?
A: They are all predators of Geraniums
B: They are all pollinators of Geraniums
C: They all eat the leaves of Geraniums
D: They all avoid Geraniums
Correct Answer: C
Explanation: The larvae of brown-tail, ghost moth, and mouse moth all eat the leaves of Geraniums.

9: What is unique about the species Geranium viscosissimum?
A: It is the tallest Geranium species
B: It is considered to be protocarnivorous
C: It only blooms at night
D: It is immune to pests
Correct Answer: B
Explanation: The species Geranium viscosissimum is considered to be protocarnivorous.

10: From which language is the genus name “Geranium” derived?
A: Latin
B: French
C: Ancient Greek
D: Sanskrit
Correct Answer: C
Explanation: The genus name “Geranium” is derived from Ancient Greek.

11: What characterizes the fruit capsule of Geranium?
A: It is shaped like a bell
B: It has a spiky surface
C: It resembles a crane’s head and bill
D: It is smooth and round
Correct Answer: C
Explanation: The fruit capsule of some Geranium species resembles a crane’s head and bill, which is why they are called cranesbills.

12: What happens to the Geranium fruit when it is ripe?
A: It changes color to red
B: It springs open to disperse seeds
C: It drops to the ground
D: It emits a sweet fragrance
Correct Answer: B
Explanation: When the fruit is ripe, the beak-like stigma springs open and casts the seeds some distance.

13: What is the key difference between flowers of the genera Geranium and Pelargonium?
A: Geranium flowers are brightly colored, while Pelargonium flowers are dull
B: Geranium flowers are radially symmetrical, while Pelargonium flowers are bilaterally symmetrical
C: Geranium flowers have more petals than Pelargonium flowers
D: Geranium flowers bloom in summer, while Pelargonium flowers bloom in winter
Correct Answer: B
Explanation: Geranium flowers are radially symmetrical (actinomorphic), while Pelargonium flowers are bilaterally symmetrical (zygomorphic).

14: How are Geraniums often described in horticulture to avoid confusion with Pelargoniums?
A: Wildflowers
B: Hardy geraniums
C: Winter geraniums
D: Desert geraniums
Correct Answer: B
Explanation: The term “hardy geranium” is often applied to horticultural Geraniums to distinguish them from the Pelargoniums, which are not winter-hardy in temperate climates.

15: Which Geranium species is commonly called “bloody cranesbill”?
A: Geranium sanguineum
B: Geranium pratense
C: Geranium maculatum
D: Geranium renardii
Correct Answer: A
Explanation: Geranium sanguineum is commonly known as “bloody cranesbill”.

16: What kind of flowers and foliage do most Geranium species grown for horticultural use have?
A: Spiny flowers and smooth foliage
B: Large flowers and needle-like foliage
C: Attractive flowers and luxuriant, lobed foliage
D: Small flowers and furry foliage
Correct Answer: C
Explanation: Most Geranium species cultivated for horticultural use have attractive flowers and luxuriant, lobed foliage.

17: Where are Geraniums typically grown in a garden?
A: Full shade only
B: Part shade to full sun
C: Only in rocky areas
D: Along water bodies
Correct Answer: B
Explanation: Geraniums are usually grown in part shade to full sun, in well-draining but moisture-retentive soils.

18: Which Geranium species is known as the “giant herb robert”?
A: Geranium maculatum
B: Geranium pratense
C: Geranium maderense
D: Geranium macrorrhizum
Correct Answer: C
Explanation: Geranium maderense is often referred to as the “giant herb robert”.

19: What type of plants are Geranium ibericum, Geranium maculatum, and Geranium pratense?
A: Annuals
B: Biennials
C: Perennials
D: Carnivorous plants
Correct Answer: C
Explanation: Geranium ibericum, Geranium maculatum, and Geranium pratense are all perennials.

20: Which hybrid Geranium has gained the Royal Horticultural Society’s Award of Garden Merit?
A: Geranium ‘Ann Folkard’
B: Geranium ‘Ivan’
C: Geranium ‘Russell Prichard’
D: All of the above
Correct Answer: D
Explanation: Hybrid cultivars such as ‘Ann Folkard’, ‘Ivan’, and ‘Russell Prichard’ have gained the Royal Horticultural Society’s Award of Garden Merit.

21: Which clade do Geraniums belong to?
A: Bryophytes
B: Gymnosperms
C: Angiosperms
D: Lycophytes
Correct Answer: C
Explanation: Geraniums belong to the clade Angiosperms.

22: What are the flowers of the Geranium genus colored?
A: Red, orange, yellow, green
B: White, pink, purple, blue
C: Brown, black, white, yellow
D: Pink, red, orange, blue
Correct Answer: B
Explanation: Geranium flowers are colored white, pink, purple, or blue.

23: What is a common name for the horticultural Geranium that is not winter-hardy?
A: Summer geranium
B: Hardy geranium
C: Pelargonium
D: Meadow geranium
Correct Answer: C
Explanation: The term “geranium” is also the common name of members of the genus Pelargonium, which are not winter-hardy in temperate horticulture.

24: Who separated the genera Geranium and Pelargonium?
A: Carl Linnaeus
B: Charles L’Héritier
C: Gregor Mendel
D: Alfred Wallace
Correct Answer: B
Explanation: Charles L’Héritier separated the genera Geranium and Pelargonium in 1789.

25: Which Geranium species is known as “Renard geranium”?
A: Geranium renardii
B: Geranium phaeum
C: Geranium endressii
D: Geranium platypetalum
Correct Answer: A
Explanation: Geranium renardii is commonly known as “Renard geranium.”

26: What part of the Geranium plant forms a column inside the flower?
A: Stamens
B: Ovary
C: Sepals
D: Carpels
Correct Answer: D
Explanation: The fruit capsule of Geranium consists of five cells joined to a column produced from the center of the flower, formed by carpels.

27: When does the seed dispersal of Geranium typically occur?
A: During rainfall
B: When the fruit is ripe
C: In dry weather
D: During winter
Correct Answer: B
Explanation: When the fruit is ripe, it springs open to cast the seeds some distance, dispersing them.

28: The term “cranesbill” derives from the resemblance of which Geranium part?
A: Leaves
B: Fruit capsule
C: Roots
D: Petals
Correct Answer: B
Explanation: The term “cranesbill” derives from the resemblance of the fruit capsule to a crane’s head and bill.

29: How many stamens do Geranium flowers typically have?
A: 8 stamens
B: 10 stamens
C: 12 stamens
D: 15 stamens
Correct Answer: B
Explanation: Geranium flowers typically have 10 free fertile stamens.

30: How do you propagate Geraniums in the summer?
A: By grafting
B: By semiripe cuttings
C: By air layering
D: By tuber division
Correct Answer: B
Explanation: Geraniums are propagated by semiripe cuttings in the summer.

31: What is Geranium pratense commonly called?
A: Grey cranesbill
B: Meadow cranesbill
C: Wooly geranium
D: Clarke’s geranium
Correct Answer: B
Explanation: Geranium pratense is commonly called “meadow cranesbill.”

32: Which Geranium species is known for having spreading rhizomes?
A: Geranium albanum
B: Geranium cinereum
C: Geranium maderense
D: Geranium macrorrhizum
Correct Answer: D
Explanation: Geranium macrorrhizum, also known as bigroot cranesbill, has spreading rhizomes.

33: Which two species are crossed in the hybrid ‘Johnson’s Blue’?
A: G. pratense and G. albanum
B: G. himalayense and G. pratense
C: G. maderense and G. endressii
D: G. renardii and G. sanguineum
Correct Answer: B
Explanation: ‘Johnson’s Blue’ is a hybrid between G. himalayense and G. pratense.

34: Which Geranium hybrid cultivar has the name ‘Rozanne’?
A: ‘Johnson’s Blue’
B: ‘Blogold’
C: ‘Gypsy’
D: ‘Gerwat’
Correct Answer: D
Explanation: Rozanne’s cultivar name is ‘Gerwat.’

35: How can you distinguish between the genera Geranium and Pelargonium from flower shape?
A: By the number of sepals
B: By the number of stamens
C: By petal arrangement
D: By the size of the leaves
Correct Answer: C
Explanation: Geranium flowers have five similar petals (radially symmetrical), whereas Pelargonium flowers have uneven petals (bilaterally symmetrical).

36: What is the common feature among many Geranium species grown for horticulture?
A: Spiny stems
B: Thorny fruits
C: Attractive flowers and lobed foliage
D: Bluish sap
Correct Answer: C
Explanation: Many Geranium species are grown for their attractive flowers and luxuriant lobed foliage.

37: What specific garden feature are some non-winter-hardy Geraniums suitable for?
A: Water gardens
B: Rock gardens
C: Desert gardens
D: Aquariums
Correct Answer: B
Explanation: Some non-winter-hardy Geranium species are grown in specialized rock gardens.

38: What type of symmetry do Geranium flowers exhibit?
A: Radial symmetry
B: Bilateral symmetry
C: Asymmetry
D: Pentameric symmetry
Correct Answer: A
Explanation: Geranium flowers exhibit radial symmetry (actinomorphic).

39: Which flowering part of Geranium acts as a catapult for seed dispersal?
A: Sepals
B: Petals
C: Stigma
D: Ovary
Correct Answer: C
Explanation: The beak-like stigma springs open and disperses the seeds.

40: What kind of conditions do Geraniums generally prefer for optimal growth?
A: Shallow, sandy soil
B: Waterlogged soil
C: Well-draining but moisture-retentive soils
D: Completely arid soil
Correct Answer: C
Explanation: Geraniums prefer well-draining but moisture-retentive soils.

41: In which family is the genus Geranium classified?
A: Asteraceae
B: Rosaceae
C: Geraniaceae
D: Brassicaceae
Correct Answer: C
Explanation: The genus Geranium belongs to the family Geraniaceae.

42: Besides seeds, by what method can Geraniums be propagated in autumn or spring?
A: Air layering
B: Division
C: Grafting
D: Leaf cuttings
Correct Answer: B
Explanation: Geraniums can be propagated by division in autumn or spring.

43: Which Geranium species is known as “Endres’s cranesbill”?
A: Geranium maculatum
B: Geranium erianthum
C: Geranium endressii
D: Geranium ibericum
Correct Answer: C
Explanation: Geranium endressii is commonly known as “Endres’s cranesbill.”

44: Which two genera are often confused with Geranium due to their common name “geranium”?
A: Pelargonium and Erodium
B: Dahlia and Verbena
C: Impatiens and Lantana
D: Coleus and Plectranthus
Correct Answer: A
Explanation: The genera Pelargonium and Erodium are often confused with Geranium due to their common name.

45: What part of the Geranium plant creates the appearance of a crane’s beak?
A: The ovary portion
B: The sepals
C: The petals
D: The leaves
Correct Answer: A
Explanation: The ovary portion forms the head, and the prolonged stigma creates the appearance of a beak.

46: Which Geranium species is known as “Fremont’s geranium”?
A: Geranium himalayense
B: Geranium fremontii
C: Geranium renardii
D: Geranium albanum
Correct Answer: B
Explanation: Geranium fremontii is commonly known as “Fremont’s geranium.”

47: What does “gynodioecious” refer to in certain Geranium species?
A: Only male plants exist
B: Only female plants exist
C: There are both female and hermaphroditic plants
D: They are self-fertilizing
Correct Answer: C
Explanation: Gynodioecious species have both female and hermaphroditic plants.

48: What is the primary color range of Geranium flowers?
A: Red and yellow
B: Blue and green
C: White, pink, purple, or blue
D: Orange and brown
Correct Answer: C
Explanation: Geranium flowers are primarily white, pink, purple, or blue.

49: How are Geraniums described to avoid confusion with Pelargoniums?
A: Woody Geraniums
B: Hardy Geraniums
C: Summer Geraniums
D: Shade Geraniums
Correct Answer: B
Explanation: They are often described as “hardy geraniums” to distinguish them from Pelargoniums.

50: Which Geranium cultivar is a hybrid between G. himalayense and G. pratense?
A: ‘Blogold’
B: ‘Ivan’
C: ‘Johnson’s Blue’
D: ‘Gerfos’
Correct Answer: C
Explanation: ‘Johnson’s Blue’ is a hybrid between G. himalayense and G. pratense.

51: How many sepals do Geranium flowers have?
A: 3 sepals
B: 4 sepals
C: 5 sepals
D: 6 sepals
Correct Answer: C
Explanation: Geranium flowers have 5 free sepals.

52: Which Geranium species is known as “wood cranesbill”?
A: Geranium erianthum
B: Geranium sylvaticum
C: Geranium cinereum
D: Geranium dalmaticum
Correct Answer: B
Explanation: Geranium sylvaticum is commonly known as “wood cranesbill.”

53: What is the main feature of the Geranium ‘Ann Folkard’ cultivar?
A: It blooms at night
B: It has red flowers
C: It is a climbing plant
D: It has earned the Royal Horticultural Society’s Award of Garden Merit
Correct Answer: D
Explanation: The ‘Ann Folkard’ cultivar has earned the Royal Horticultural Society’s Award of Garden Merit.

54: Which Geranium cultivar is also known as ‘Ballerina’?
A: G. endressii
B: G. pratense
C: G. dalmaticum
D: G. ‘Nimbus’
Correct Answer: C
Explanation: ‘Ballerina’ is one of the hybrid cultivars from Geranium dalmaticum.

55: What is the common name for Geranium macrorrhizum?
A: Giant herb robert
B: Bigroot cranesbill
C: Cervine geranium
D: Wooly geranium
Correct Answer: B
Explanation: Geranium macrorrhizum is commonly known as “bigroot cranesbill.”

56: Which Geranium species is also called “dusky cranesbill”?
A: Geranium phaeum
B: Geranium maderense
C: Geranium endressii
D: Geranium maculatum
Correct Answer: A
Explanation: Geranium phaeum is commonly called “dusky cranesbill.”

57: Which of the following foliage types is common in Geranium species?
A: Needle-like
B: Palmate lobed
C: Simple oval
D: Pinnate compound
Correct Answer: B
Explanation: Geranium species typically have palmate lobed foliage.

58: Which Geranium cultivar is admired for its vibrant blue flowers?
A: ‘Ballerina’
B: ‘Blue Cloud’
C: ‘Gypsy’
D: ‘Russell Prichard’
Correct Answer: B
Explanation: The ‘Blue Cloud’ cultivar is admired for its vibrant blue flowers.

59: What type of Geranium is ‘Blogold’?
A: A seasonal flowering plant
B: A hybrid cultivar called Blue Sunrise
C: A native species of North America
D: A wild perennial species
Correct Answer: B
Explanation: ‘Blogold’ is a hybrid cultivar commonly known as Blue Sunrise.

60: Which Geranium cultivar is known for its pink flowers?
A: ‘Wargrave Pink’
B: ‘Dilys’
C: ‘Ivan’
D: ‘Orion’
Correct Answer: A
Explanation: ‘Wargrave Pink’ is a cultivar known for its distinctive pink flowers.

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