5 Quick-Growing Tiny Flowers to Brighten Your Garden Instantly

If you want to add vibrant colors to your garden this year but are pressed for time, these quick-growing tiny flowers are your best bet.

Whether you're after low-growing ground covers or taller perennial options, you'll find a variety that fits your needs and grows swiftly.

Here are five fast-growing flowering annuals and perennials with miniature blooms, suitable for various climates and hardiness zones. Adding these flowers will certainly enhance your garden's color and texture this season.

Deep blue iris flowers set in a Japanese garden at Chelsea Flower Show

Top Fast-Growing Tiny Flowers

Planting some of the finest annual and perennial flowers is an efficient way to liven up your borders and containers. As a seasoned gardener, I've cultivated all these species, and I always appreciate the delicate charm of their tiny blooms. Plus, these plants are excellent for attracting pollinators, thanks to their simple, accessible flower shapes.

1. Sweet Alyssum

Sweet alyssum, or Lobularia maritima, is a fast-growing option perfect for hanging baskets. It comes in various types, including trailing varieties and flowering ground covers, available in white, pink, or purple hues.

When grown from seed, sweet alyssum can bloom in under eight weeks, which is impressively quick. Sow seeds twice a year: once in late winter indoors and again in late spring outside, ensuring a continuous display of flowers.

Most gardeners treat sweet alyssum as a part-shade annual, though it thrives in full sun as well. Just remember to water it well during warmer months.

In warmer areas, such as US hardiness zone 8 and above, sweet alyssum may return the following year, while in cooler zones, it's generally considered an annual that dies off with the first frost.

Check out this pink 'Royal Carpet' variety, with seeds available from Burpee.

2. Verbena

Verbena bonariensis is another rapidly growing, self-seeding flower known for its pollinator-friendly blooms that last well into the fall. Thriving in sunny spaces, this plant is hardy down to zone 7.

When starting verbena from seed, be sure to sow it early in spring to enjoy flowers in the same year. Typically, if sown in February, March, or April, it will bloom by June or July, reaching heights of up to five feet within one growing season.

You can also explore native planting options like blue vervain, Verbena hastata, which features tall spikes of purple-blue flowers, perfect for a naturalistic garden design.

Order verbena seeds from Amazon.

3. Creeping Thyme

Creeping thyme, or Thymus serpyllum, is a favorite among gardeners. According to expert Bert Bast, this plant creates a stunning carpet of tiny purple-pink flowers, reaching maturity in under two years. It's also a magnet for bees, often buzzing with activity in the summer.

These herbs prefer well-draining soil and are hardy down to zone 5. Bert suggests giving them plenty of sunlight for optimal growth.

Creeping thyme seeds are available via Amazon.

4. Baby's Breath

If you're planning a cut flower garden, consider adding baby's breath, or Gypsophila, to your list.

This flower is celebrated for its clusters of tiny white or pink blooms, cherished by florists and gardeners for its light, airy appeal in borders and bouquets.

When grown from seed, baby's breath usually matures and begins to bloom about 50 to 60 days after germination.

To avoid late frost, wait until May to plant outside, positioning them in full sun, except in southern regions where some afternoon shade is beneficial.

Buy baby's breath seeds from Amazon.

5. Lobelia

Lobelia is a fantastic choice for summer container gardens, typically yielding a burst of white, blue, or purple flowers over many months.

This plant is generally regarded as a half-hardy annual, meaning it may not survive winter in colder northern zones like zone 3. However, in warmer regions or sheltered areas, it might act as a perennial.

Seeds can be started indoors during winter, often on a sunny windowsill or in a heated greenhouse. Alternatively, you might find plug plants at local stores, which should only be planted outside when evening temperatures are consistently above 60°F (15°C).

Try 'Crystal Palace' lobelia seeds from Burpee for a summer display of purple blooms.

Tips for Growing Fast-Growing Tiny Flowers

When cultivating these quick-growing tiny flowers in containers, remember to water and feed them regularly during the hottest months to prolong blooming. For more garden ideas, explore our suggestions on fast-growing flowering vines that can quickly adorn vertical spaces in your yard.