Buttery yellow trumpet-shaped flowers bloom nonstop from planting until frost. Use this easy-to-grow annual in hanging baskets or window boxes, mass as a bedding plant or cascade along a wall or slope.
Unique pinwheel flowers in yellow and white make a striking addition to containers and hanging baskets. Combine with other bold annuals for a punch of color all season long. Carefree, needs no deadheading.
Nothing says summer like the golden blooms of annual sunflowers. This compact variety flowers for longer than other types. Plant in a kitchen garden or cottage-style border to attract pollinators. Birds will love it, too.
Also known as common everlasting, this groundcover is tolerant of heat, drought and poor soils. Clusters of small yellow flowers bloom from planting until frost. Use in rock gardens, mass plantings and containers.
Golden daisy-like flowers grow 3 inches across, the largest of any bidens. Provides nonstop color from early summer until frost. Combine with other plants in a hanging basket or container. Heat and drought-tolerant.
Also known as pot marigold, these big yellow flowers with double petals will liven up any border or container. This short-lived perennial is mostly grown as an annual and its edible petals can be added to salads and other dishes.
Grown as an annual in most regions, this plant has clusters of bright yellow flowers all season. Use in landscape beds or containers as a stand-alone accent or combine with complementary plants. Heat and drought-tolerant.
A popular groundcover, purslane is suitable for rock gardens, walls and challenging sites. Large rose-like flowers on this tough succulent are captivating on their own or when combined with other waterwise plants.
This warm-season annual grown from tubers blooms nonstop from mid-summer until frost. Lemony yellow flowers with a burgundy-red center stand out against dark purple foliage. Grow in a large container or border and save tubers to replant the following year.
This creeping groundcover produces yellow flowers that look like tiny daisies. Use these cheerful blooms to brighten up a window box, container or border. Heat tolerant with self-cleaning blooms from summer through frost.
Little light yellow flowers bloom in profuse clusters in all but the hottest weather. Use this bushy annual in window boxes or containers with other plants, or plant in the landscape as a groundcover or pathway edging.
Add tropical flair with this heat-lover featuring exotic yellow flowers on tall stalks. Bold foliage adds drama to containers or mixed borders. Overwinter rhizomes indoors to replant the following spring.
Stately spikes of rich buttery flowers brighten up the landscape in mid summer. Use this perennial to light up a shady border, streamside garden or boggy areas. Bold serrated foliage provides multi-seasonal interest.
Tall yellow flowers on this sturdy native perennial add height and elegance to a mixed border or garden bed. Pea-like blooms occur on long stems from late spring to early summer. Tolerant of poor soils and extremely long-lived.
Dark green ferny foliage contrasts with clusters of tiny bright yellow flowers on long sturdy stems. This long-lived cottage garden staple provides lasting color in the summer garden. Tolerant of drought and various growing conditions.
Towering spikes of golden yellow flowers add vertical drama to an informal border or curbside planting. This reliable perennial is tolerant of heat, drought and poor soils. Blooms continuously all summer long.
One of the best reblooming daylilies, fragrant lemony flowers add a ray of sunshine to a border, bed or slope. These long-lived carefree plants are tolerant of various soil conditions and are reliable in most growing regions.
Sedums are good plants for rockeries, sunny borders and waterwise landscapes. Yellow summer flowers pop against a backdrop of cream and green variegated foliage. Thrives in poor soil and needs little additional water. Use as a groundcover, in containers or as edging in areas with good drainage.
The most compact heliopsis available, this variety is more controlled and well-suited to smaller spaces. Yellow perennial flowers occur from mid to late summer, supporting insect pollinators including bees and butterflies. Use in a mixed border or mass plantings.
Add foliage and flower interest to the landscape with this reliable maintenance-free shrub. Steel blue foliage contrasts beautifully with sunburst bright yellow summer flowers. Use in a mixed border, massed along a slope or as a foundation planting.
Yellow garden flowers on this hardy carefree shrub add multi-seasonal interest even in the coldest regions. Extra-large strawberry-like flowers bloom nonstop from spring to frost. Use along a foundation, in mixed borders or mass plantings.
For carefree color in the landscape, nothing beats Oso Easy roses. This sturdy shrub has pretty yellow roses that stand out against the glossy green foliage. Single-petaled blooms are fade-resistant and self-cleaning. Disease-resistant and maintenance-free.
Add vertical height and intoxicating fragrance to the yard with this showy climbing shrub. Pale lemony yellow flowers bloom from mid spring to late summer, followed by attractive red berries. Train up an arbor, trellis or fence.
These cheerful golden flowers are a sure sign of spring and will brighten up a border or foundation planting. This improved form with a compact habit produces a profusion of flowers up and down the stems.
Not your typical Scotch broom, this elegant weeping form is covered with brilliant yellow pea-like flowers in spring. Plant alongside bulbs such as daffodils and tulips for a dazzling springtime display.
Sunflowers have big, daisy-like flower faces much like that surround a brown center which will ripen and be filled with seeds. They are extremely popular as cut flowers and can often be found in floral arrangements in fall.
I took my macro lens for flower close-ups, and I managed to get a few that I liked despite the pre-thunderstorm breeze. It can be tricky isolating your subject when there are so many flowers in the frame.
Flower color is most often conferred by colored flavonoid pigments. Aurone flavonoids confer a bright yellow color on flowers such as snapdragon (Antirrhinum majus) and dahlia (Dahlia variabilis). A. majus aureusidin synthase (AmAS1) was identified as the key enzyme that catalyzes aurone biosynthesis from chalcones, but transgenic flowers overexpressing AmAS1 gene failed to produce aurones. Here, we report that chalcone 4'-O-glucosyltransferase (4'CGT) is essential for aurone biosynthesis and yellow coloration in vivo. Coexpression of the Am4'CGT and AmAS1 genes was sufficient for the accumulation of aureusidin 6-O-glucoside in transgenic flowers (Torenia hybrida). Furthermore, their coexpression combined with down-regulation of anthocyanin biosynthesis by RNA interference (RNAi) resulted in yellow flowers. An Am4'CGT-GFP chimeric protein localized in the cytoplasm, whereas the AmAS1(N1-60)-RFP chimeric protein was localized to the vacuole. We therefore conclude that chalcones are 4'-O-glucosylated in the cytoplasm, their 4'-O-glucosides transported to the vacuole, and therein enzymatically converted to aurone 6-O-glucosides. This metabolic pathway is unique among the known examples of flavonoid, including anthocyanin biosynthesis because, for all other compounds, the carbon backbone is completed before transport to the vacuole. Our findings herein not only demonstrate the biochemical basis of aurone biosynthesis but also open the way to engineering yellow flowers for major ornamental species lacking this color variant.
Covered by beautiful buttery yellow blooms accented by darker yellow veins, this easy-care petunia is excellent as a filler or spiller plant in hanging baskets and window boxes or used at the front of a garden bed to create a pretty yellow border. Will bloom continuously even without deadheading. Learn more about growing petunias.
This compact sunflower blooms longer than other types, giving you a continuous supply of cheery golden-yellow flowers that are great for cutting. Attractive to bees, butterflies and birds, sunflowers are also a sure-fire way to lure local wildlife to your garden. Learn more about growing sunflowers.
Produces large, fragrant flowers that blossom in shades of soft yellow and apricot throughout the summer. Although tuberous begonias are not cold hardy, you can dig up the tubers at the first threat of frost and replant them the following spring. Learn more about growing and caring for begonias.
Sporting fully double, bright yellow blooms, this charming pot marigold brings a sunny presence to garden borders and container plantings. The flowers are edible, too, and can be used to garnish salads and other dishes.
Also known as moss rose because of its low-growing habit and rose-like flowers, this colorful succulent comes in a wide assortment of bold, bright hues, including various shades of yellow and mixed colors. Plant in any sunny spot where you need a fast-growing, drought-tolerant groundcover. Learn more about growing moss rose plants.
This popular cool-season grower comes in a multitude of colors, but yellow-flowering varieties are among the most versatile. You can choose from solid shades as well as blended patterns that look just as good in the spring garden as they do in the fall. See our guide to growing perfect pansies.
Zinnia flowers come in almost as many shapes as they do colors, including several varieties with fully double yellow blossoms. They are great for cutting, too, and will bloom even more if you harvest them regularly. For a match made in heaven, combine yellow zinnias with purple verbena or ornamental salvia. Learn more about growing zinnias.
Heat and drought conditions are no match for this carefree bloomer, which will reward you with clusters of bright yellow flowers all summer long, even without deadheading. Lantana flowers are also rich in nectar, making them irresistible to butterflies, hummingbirds, and other pollinators. Learn more about how to grow lantana plants.
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