You’ll Love These 27 Flowers That Start With Y

The list of flowers that start with Y is dominated by yellow flowers, so you're sure to find something that will bring a bright pop of color to your garden. Some flowers, such as the yellow daylily, are noted simply for their color. However, the yellow coneflower is a variety of coneflower named for its color but is also available in other hues like orange and brown.

Whether you’re creating an alphabet garden or want to learn about new flowers, we have a list of several flowers that start with Y. We include the most important information you need to get started. Take note that some flowers, such as Young’s Helleborine, are hard to find in some countries.

Flowers That Start With Y:

Quick Look

1. Yama-Shakuyaku (Peony)

yama-shakuyaku

Scientific Name: Paeonia japonica

Sun: Partial shade

Water: Keep soil moist

Size: 1-1.5 feet (30-45 centimeters)

Lowest Temperature: -20°F (-28°C)

Toxicity: None

Colors: Pink, yellow, purple, white

2. Yarrow

yarrow

Scientific Name: Achillea millefolium

Sun: Full sun

Water: Drought tolerant, prefers moist soil

Size: 2-3 feet (60-91 centimeters)

Lowest Temperature: -40°F (-40°C)

Toxicity: None

Colors: Pink, red, burgundy, orange, yellow, gold, purple, lavender, cream, tan, white

3. Yellow Archangel

yellow archangel

Scientific Name: Lamiastrum galeobdolon

Sun: Partial shade, deep shade

Water: Drought tolerant at maturity, prefers moist soil

Size: 1-2 feet (30-60 centimeters)

Lowest Temperature: -30°F (-34°C)

Toxicity: None

Colors: Yellow

4. Yellow Asphodel (Kings Spear)

yellow asphodel

Scientific Name: Asphodeline lutea

Sun: Full sun

Water: Keep soil moist

Size: 3-4 feet (0.91-1 meters)

Lowest Temperature: -10°F (-23.3°C)

Toxicity: None

Colors: Yellow

5. Yellow Bell

yellow bell

Scientific Name: Allamanda cathartica

Sun: Full sun

Water: Keep soil moist

Size: 10-20 feet (3-6 meters)

Lowest Temperature: 30°F (-1.1°C)

Toxicity: Low, the sap can cause skin irritation

Colors: Yellow

6. Yellow Bells (Esperanza)

yellow bells

Scientific Name: Tecoma Stans

Sun: Full sun

Water: Keep soil moist

Size: 2-6 feet (0.6-1.8 meters)

Lowest Temperature: 30°F (-1.1°C)

Toxicity: None

Colors: Yellow

7. Yellow Coneflower

yellow coneflower

Scientific Name: Echinacea paradoxa

Sun: Full sun, partial shade

Water: Drought tolerant, keep soil slightly dry

Size: 2-3 feet (60-91 centimeters)

Lowest Temperature: -20°F (-28°C)

Toxicity: None

Colors: Orange, yellow, gold, brown, copper

8. Yellow Daylily

yellow daylily

Scientific Name: Hemerocallis lilioasphodelus

Sun: Full sun, partial shade

Water: Keep soil moist

Size: 2-3 feet (60-91 centimeters)

Lowest Temperature: -30°F (-34°C)

Toxicity: None

Colors: Yellow

9. Yellow Flag Iris

yellow flag iris

Scientific Name: Iris pseudacorus

Sun: Full sun, partial shade

Water: Keep soil moist or wet

Size: 3-5 feet (0.91-1.5 meters)

Lowest Temperature: -20°F (-28°C)

Toxicity: Low

Colors: Yellow, gold

10. Yellow Foxglove

yellow foxglove

Scientific Name: Digitalis grandiflora

Sun: Partial shade

Water: Keep soil moist

Size: 2-3 feet (60-91 centimeters)

Lowest Temperature: -40°F (-40°C)

Toxicity: High, can be fatal if eaten

Colors: Yellow

11. Yellow Ginger Lily

yellow ginger lily

Scientific Name: Hedychium flavescens

Sun: Full sun, partial shade

Water: Keep soil moist

Size: 3-6 feet (0.91-1.8 meters)

Lowest Temperature: 20°F (-6°C)

Toxicity: None

Colors: Yellow

12. Yellow Hibiscus

yellow hibiscus

Scientific Name: Hibiscus brackenridgei

Sun: Full sun, partial shade

Water: Drought tolerant, keep soil slightly dry

Size: 3-15 feet (0.91-4 meters)

Lowest Temperature: 20°F (-6°C)

Toxicity: None

Colors: Yellow

13. Yellow Loosestrife

yellow loosestrife

Scientific Name: Lysimachia punctata

Sun: Full sun, partial shade

Water: Keep soil moist

Size: 2-3 feet (60-91 centimeters)

Lowest Temperature: -30°F (-34°C)

Toxicity: None

Colors: Yellow

14. Yellow Morning Glory

yellow morning glory

Scientific Name: Merremia tuberosa

Sun: Full sun, partial shade, light shade

Water: Slight drought tolerance, prefers moist soil

Size: 30-40 feet (9-12 meters)

Lowest Temperature: 25°F (-3.8°C)

Toxicity: Seeds are toxic if consumed

Colors: Yellow

15. Yellow Oleander

yellow oleander

Scientific Name: Cascabela thevetia

Sun: Full sun, partial shade

Water: Keep soil moist

Size: 4-8 feet (1-2.5 meters)

Lowest Temperature: 10°F (-12°C)

Toxicity: None

Colors: Yellow

16. Yellow Passionfruit

yellow passionfruit

Scientific Name: Passiflora edulis

Sun: Full sun

Water: Keep soil moist

Size: 10-15 feet (3-4 meters)

Lowest Temperature: 30°F (-1.1°C)

Toxicity: None

Colors: Purple and white flowers, yellow fruit

17. Yellow Pitcher Plant

yellow pitcher plant

Scientific Name: Sarracenia flava

Sun: Full sun

Water: Keep soil wet

Size: 1.5-3 feet (45-91 centimeters)

Lowest Temperature: -10°F (-23.3°C)

Toxicity: None

Colors: Yellow

18. Yellow Poinciana

yellow poinciana

Scientific Name: Peltophorum pterocarpum

Sun: Full sun

Water: Drought tolerant, prefers moist or wet soil

Size: 40-50 feet (12-15 meters)

Lowest Temperature: 30°F (-1.1°C)

Toxicity: None

Colors: Yellow

19. Yellow Rattleshaker

yellow rattleshaker

Scientific Name: Calathea crotalifera

Sun: Partial shade

Water: Keep soil moist

Size: Up to 8 feet (2.5 meters)

Lowest Temperature: 40°F (4.4°C)

Toxicity: None

Colors: Red, burgundy, yellow, gold, brown, copper

20. Yellow Waxbells

yellow waxbells

Scientific Name: Kirengeshoma palmata

Sun: Partial shade, full shade

Water: Keep soil moist

Size: 3-4 feet (0.91-1 meters)

Lowest Temperature: -20°F (-28°C)

Toxicity: None

Colors: Yellow

21. Yellow Wild Indigo

Yellow Wild Indigo

 

Scientific Name: Baptisia sphaerocarpa

Sun: Full sun, partial shade

Water: Drought tolerant, prefers moist soil

Size: 2-3 feet (60-91 centimeters)

Lowest Temperature: -20°F (-28°C)

Toxicity: None

Colors: Yellow

22. Yellow Wood Sorrel

Yellow Wood Sorrel

 

Scientific Name: Oxalis stricta

Sun: Full sun, partial shade

Water: Keep soil moist or occasionally dry

Size: 2-12 inches (5-30 centimeters)

Lowest Temperature: -20°F (-28°C)

Toxicity: Low

Colors: Yellow

23. Yellow-Eyed Grass

Yellow-Eyed Grass

 

Scientific Name: Xyris difformis

Sun: Full sun

Water: Keep soil moist or wet

Size: 0.5-2 feet (15-60 centimeters)

Lowest Temperature: -40°F (-40°C)

Toxicity: None

Colors: Yellow

24. Yellowroot

yellowroot

Scientific Name: Xanthorrhiza simplicissima

Sun: Partial shade, dappled sunlight

Water: Keep soil moist

Size: 2-3 feet (60-91 centimeters)

Lowest Temperature: -40°F (-40°C)

Toxicity: None

Colors: Purple, lavender, brown, copper

25. Yoshino Cherry

Yoshino Cherry

 

Scientific Name: Prunus x yedoensis

Sun: Full sun, partial shade

Water: Keep soil moist

Size: 30-40 feet (9-12 meters)

Lowest Temperature: -20°F (-28°C)

Toxicity: None

Colors: Pink, white

26. Young's Helleborine

young's helleborine

Scientific Name: Epipactis youngiana

Sun: Partial shade, deep shade

Water: Keep soil moist or wet

Size: Up to 4 feet (1 meter)

Lowest Temperature: -10°F (-23.3°C)

Toxicity: None

Colors: Cream, white

27. Yucca

yucca

Scientific Name: Yucca aloifolia

Sun: Full sun, partial shade

Water: Drought tolerant

Size: 10-15 feet (3-4 meters)

Lowest Temperature: -10°F (-23.3°C)

Toxicity: None

Colors: Purple, lavender, white

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