The list of flowers that start with Y is dominated by yellow flowers (perfect for growing alongside dwarf sunflowers), 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.
To learn more about the various flowers available for your garden, make sure to check out our list of “Flower Names A to Z”.
27 Lovely Flowers That Start With Y
1. Yama-Shakuyaku (Peony)
- 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
- 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
- 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)
- 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
- 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)
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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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