Plants That Start With Y

Yarrow, yucca, and yellowwood represent just a few options when you’re working through alphabetical plant lists. Each brings distinct characteristics to gardens seeking uncommon additions. If you are hunting for “plants that start with y,” you have landed in the right spot.

This guide covers a wide range of options, from hardy perennials to towering trees. You will find practical growing tips and visual descriptions for each one. Let’s build your knowledge base with these yellow and green beauties.

This list is not exhaustive, but it covers the most common and garden-worthy species. You will notice that some are extremely popular, while others are rare collector’s items. We have organized them by plant type to make your search easier.

Yarrow (Achillea Millefolium)

Yarrow is a tough, herbaceous perennial that thrives in poor soil. It features feathery, fern-like foliage that is aromatic when crushed. The flower heads are flat-topped clusters of tiny blooms in shades of white, yellow, pink, or red.

Sun Needs: Full sun is best for sturdy stems.
Soil: Well-drained soil is critical; they hate wet feet.
Hardiness: Zones 3 to 9.
Uses: Great for cut flowers, dried arrangements, and pollinator gardens.

You can divide yarrow every two to three years to keep it vigorous. It is also deer-resistant and drought-tolerant once established. This makes it a low-maintenance choice for beginners.

Yucca (Yucca Spp.)

Yucca plants are evergreen shrubs or trees known for their sharp, sword-like leaves. They produce tall spikes of creamy-white, bell-shaped flowers in early summer. These plants are architectural wonders in any landscape.

Choose a location with full sun and sharp drainage.
Dig a hole twice as wide as the root ball.
Plant the yucca so the base is level with the soil surface.
Water deeply after planting, then reduce watering significantly.

Be careful when handling yucca leaves because the tips are very sharp. They are perfect for xeriscaping or rock gardens. Some varieties, like the Adam’s needle, are more cold-hardy than others.

Yellowwood (Cladrastis Kentukea)

Yellowwood is a medium-sized deciduous tree that offers multi-season interest. It produces hanging clusters of fragrant, wisteria-like white flowers in late spring. The smooth gray bark resembles that of a beech tree.

This tree is native to the southeastern United States but adapts well to many regions. It gets its name from the yellow color of its heartwood. The fall foliage turns a soft golden-yellow, adding to its appeal.

Height: 30 to 50 feet tall.
Spread: 40 to 50 feet wide.
Light: Full sun to partial shade.
Soil: Prefers moist, well-drained loam but tolerates clay.

Yellowwood is a great shade tree for large properties. It is relatively pest-free and has a beautiful branching structure in winter.

Yarrow ‘Moonshine’ (Achillea ‘Moonshine’)

This specific cultivar of yarrow deserves its own mention. ‘Moonshine’ is prized for its bright, sulfur-yellow flower clusters. The silvery-gray foliage provides a stunning contrast to the vivid blooms.

It is a more compact plant than the straight species, making it ideal for borders. This variety is also known for its exceptional heat tolerance. You will find it blooming from early summer into fall if you deadhead spent flowers.

Pair ‘Moonshine’ with blue salvias or purple coneflowers for a striking color combination. It is a pollinator magnet and will bring bees and butterflies to your yard.

Yellow Archangel (Lamium Galeobdolon)

Yellow archangel is a fast-spreading ground cover with silver-marked leaves. It produces spikes of cheerful yellow flowers in spring. This plant is perfect for shady areas where grass struggles to grow.

Be aware that this plant can be aggressive in some gardens. It spreads by runners and can quickly take over a bed. You may want to contain it with edging or plant it in a confined area.

Light: Partial to full shade.
Soil: Tolerates dry shade once established.
Foliage: Evergreen in mild climates.
Uses: Excellent under trees or on slopes.

If you need a tough ground cover for a difficult spot, this is a solid choice. Just keep an eye on its spread to prevent it from smothering smaller plants.

Yellow Trout Lily (Erythronium Americanum)

This is a delicate spring ephemeral native to eastern North America. It features mottled, trout-like leaves and a single, nodding yellow flower. The blooms appear in early spring before the tree canopy fills in.

Trout lilies naturalize well in woodland gardens. They go dormant by early summer, so they are best planted among later-emerging perennials. The flowers are a welcome sight for early-season pollinators.

Plant corms in the fall, about 3 inches deep.
Choose a spot with rich, humusy soil.
Keep the soil consistently moist in spring.
Allow the foliage to die back naturally after blooming.

These plants are slow to establish but form lovely colonies over time. They are a great addition to a native plant garden.

Yellow Coneflower (Echinacea Paradoxa)

Unlike the common purple coneflower, this species has bright yellow petals. It is the only yellow coneflower in the genus Echinacea. The center cone is a dark brown or black color, providing great contrast.

This plant is native to the Ozarks and is quite rare in the wild. It is, however, easy to grow in cultivated gardens. It is a magnet for butterflies and beneficial insects.

Height: 2 to 3 feet tall.
Bloom Time: Early to mid-summer.
Drought Tolerance: Excellent once established.
Soil: Needs sharp drainage, especially in winter.

Yellow coneflower is a standout in prairie-style plantings. It pairs well with ornamental grasses and other native wildflowers.

Yew (Taxus Spp.)

Yews are evergreen conifers that are widely used for hedges and topiary. They have flat, dark green needles and red, berry-like cones. These plants are very tolerant of pruning and shearing.

You can find yews in many shapes, from low spreading shrubs to upright trees. They are extremely long-lived and can be passed down through generations. They are also very tolerant of shade.

Be cautious because all parts of the yew plant are toxic if ingested. This is a critical consideration if you have pets or small children. However, they remain a popular choice for formal gardens.

Yellow Flag Iris (Iris Pseudacorus)

This is a vigorous perennial that thrives in wet, boggy conditions. It produces bright yellow flowers with distinctive dark markings on the falls. It is perfect for pond margins or rain gardens.

This iris is very easy to grow but can be invasive in some regions. It spreads quickly by rhizomes and seeds. Check your local regulations before planting it in open areas.

Water: Needs consistently moist to wet soil.
Sun: Full sun to partial shade.
Height: 3 to 4 feet tall.
Maintenance: Divide every 2-3 years to control spread.

If you have a problem area that stays wet, this plant will thrive. It adds a bold splash of color to water features.

Yellow Wax Bells (Kirengeshoma Palmata)

This is an elegant, shade-loving perennial with maple-like leaves. It produces nodding, waxy, yellow flowers in late summer. It is a slow-growing plant that forms a nice clump over time.

Yellow wax bells are a bit of a collector’s plant, not often found in big box stores. They prefer cool, moist, woodland conditions. They look fantastic when planted with hostas and ferns.

The flowers are quite unique and resemble small, closed bells. This plant adds a refined texture to the shade garden. It is generally pest-free and low maintenance.

Yulan Magnolia (Magnolia Denudata)

This is a deciduous tree that is considered one of the most beautiful magnolias. It produces large, pure white, cup-shaped flowers in early spring. The blooms appear before the leaves, creating a stunning display.

This tree is native to China and has been cultivated for centuries. It is a parent of many hybrid magnolias. It grows slowly and can take several years to start blooming heavily.

Height: 30 to 40 feet tall.
Spread: 25 to 30 feet wide.
Soil: Prefers acidic, well-drained soil.
Protection: Plant in a sheltered spot to protect blooms from frost.

Yulan magnolia is a specimen tree that deserves a prominent spot in the landscape. Its spring display is truly unforgettable.

Yellowroot (Xanthorhiza Simplicissima)

Yellowroot is a low-growing, deciduous shrub native to the eastern US. It is not grown for its flowers, but for its attractive, compound foliage. The leaves turn a brilliant yellow or orange in the fall.

This plant forms a dense mat of stems, making it an excellent ground cover. It spreads by underground runners. The inner bark of the roots is yellow, which is where the name comes from.

Light: Partial to full shade.
Soil: Prefers moist, acidic soil.
Height: 1 to 2 feet tall.
Uses: Erosion control on shady banks.

Yellowroot is a tough, native alternative to non-native ground covers. It is very low maintenance and rarely has any pest problems.

Yerba Buena (Satureja Douglasii)

Yerba buena is a creeping perennial herb native to the Pacific coast. It has small, round, mint-scented leaves and tiny white flowers. The name means “good herb” in Spanish.

This plant is excellent for hanging baskets or as a ground cover in mild climates. It prefers cool, moist, shady conditions. The leaves can be used to make a refreshing tea.

It is not very heat-tolerant and will die back in hot, dry summers. It is best suited for coastal gardens or shaded rockeries. The trailing habit makes it very attractive.

Yam (Dioscorea Spp.)

While not typically an ornamental, yams are a significant food crop. They are tropical vines grown for their large, starchy tubers. True yams are different from sweet potatoes, which are in a different plant family.

You can grow yams in warm climates with a long growing season. They require a trellis for their twining vines. The tubers can be harvested after the foliage dies back.

Plant yam tubers or slips after the last frost.
Provide full sun and rich, loose soil.
Keep the soil consistently moist.
Harvest in the fall before the first frost.

Ornamental yams, like the air potato, are grown for their unique bulbils. However, some of these are considered invasive, so do your research first.

Yellow-Eyed Grass (Sisyrinchium Spp.)

Despite the name, this is not a true grass but a member of the iris family. It forms clumps of slender, grass-like leaves. The flowers are small, star-shaped, and typically blue or yellow with a distinct yellow center.

This plant is native to North and South America. It is a charming addition to rock gardens or the front of a border. It blooms in late spring and early summer.

Light: Full sun to partial shade.
Soil: Well-drained, average soil.
Height: 12 to 18 inches tall.
Maintenance: Deadhead to encourage more blooms.

Yellow-eyed grass is a delicate-looking plant that is actually quite tough. It self-seeds gently in favorable conditions.

Yarrow ‘Paprika’ (Achillea Millefolium ‘Paprika’)

Another stunning yarrow cultivar, ‘Paprika’ offers fiery red flowers with yellow centers. The blooms fade to a soft pink or cream as they age. This creates a beautiful multi-colored effect in the garden.

This variety is slightly shorter than ‘Moonshine’ but just as tough. It is an excellent choice for hot, dry, sunny spots. The flowers are great for cutting and drying.

You can plant this yarrow in mass for a bold statement. It also works well in container gardens. The foliage is aromatic and deer-resistant.

Yellow Fumitory (Corydalis Lutea)

This is a charming, low-growing perennial with delicate, fern-like foliage. It produces clusters of small, tubular, yellow flowers from spring to fall. It is a long-blooming plant that thrives in cool, shady spots.

Yellow fumitory self-seeds readily but is not aggressive. It will pop up in cracks and crevices, adding a cottage-garden feel. It is perfect for edging paths or filling gaps in a stone wall.

Light: Partial to full shade.
Soil: Humusy, well-drained soil.
Height: 12 to 15 inches tall.
Hardiness: Zones 5 to 7.

This plant is a reliable bloomer that will brighten up dark corners. It is a favorite among gardeners who love delicate, airy textures.

Yarrow ‘Coronation Gold’ (Achillea ‘Coronation Gold’)

This is a classic, tall yarrow variety with large, flat-topped clusters of golden-yellow flowers. It is a robust plant that is perfect for the back of a sunny border. The sturdy stems hold up well in wind and rain.

This variety is a hybrid that has been popular for decades. It is incredibly drought-tolerant and thrives in poor soil. The flowers are excellent for fresh and dried arrangements.

Divide this plant every few years to maintain its vigor. It is a reliable, long-lived perennial that requires minimal care. It is a must-have for any sunny, low-water garden.

Yellow Alder (Turnera Ulmifolia)

This is a tropical shrub or sub-shrub known for its bright yellow, five-petaled flowers. The flowers open in the morning and close in the heat of the afternoon. It blooms profusely throughout the warm season.

In tropical climates, it can be grown as a hedge or border plant. In cooler zones, it is often grown in containers and brought indoors for winter. It is a fast grower and easy to propagate from cuttings.

Light: Full sun to partial shade.
Water: Moderate water needs.
Height: 2 to 4 feet tall.
Soil: Well-drained, fertile soil.

Yellow alder is a cheerful plant that attracts butterflies. It is a great choice for adding a tropical flair to your patio.

Yarrow ‘Summer Pastels’ (Achillea Millefolium ‘Summer Pastels’)

This is a seed-grown mix of yarrow that comes in a range of soft colors. You will get blooms in shades of pink, salmon, cream, and yellow. It is a fantastic way to add variety to your garden with a single packet of seeds.

This mix is just as tough as other yarrows. It is a great choice for a wildflower meadow or a casual cottage garden. The plants are attractive to pollinators and beneficial insects.

You can start the seeds indoors or sow them directly in the garden. They will bloom in their first year if started early. This is a cost-effective way to fill a large area with color.

Yellow Wild Indigo (Baptisia Sphaerocarpa)

This is a native perennial with spikes of bright yellow, pea-like flowers. It has attractive, blue-green foliage that forms