Where to buy four o’clock seeds

Four O’Clocks are a fast growing bushy plant which are easy to grow from wildflower seed. They grow to about 36 inches with oval lance shaped leaves and trumpet …

When should you plant 4 o’clock seeds?



These plants can be sown directly in the garden in the spring once the danger of frost has passed. For best germination, soak the seeds overnight in water. Then, plant the seeds about 1/4 inch deep in your garden soil.

How long does it take to grow four o’clocks from seed?

7-10 days

Firm soil lightly with your hand, water and keep evenly moist. Seedlings will emerge in 7-10 days.

Is it too late to plant four o’clock seeds?

Four o’clocks have large seeds, bigger than garden peas. They’re easy to direct-sow. Wait to plant them until after the soil has warmed in spring and danger of frost is past. Soak them overnight and then tuck them in between your early summer plants.

Where should I plant 4 o’clock flowers?


Four o’clocks flourish in a full sun to part sun area and are best planted where you can enjoy the heady fragrance. It is helpful to soak or nick the seed coat before planting. A low maintenance bloom, this reliable flower needs only occasional watering and is somewhat drought resistant.

Do 4 O clocks come back every year?

Four o’clocks are easy to grow from seed. Plants get to be two or three feet tall in sunny spots or in part shade, and they bloom from midsummer until frost. In relatively warm-winter climates, four o’clocks will come back every year from tubers that overwinter in the ground.

How long does it take for four o’clocks to bloom from seed?

7 to 10 days

When planting four o’clocks from seed, the germination time may take 7 to 10 days for seedlings to appear. Under the right conditions, four o’clocks may germinate more quickly, particularly indoors under grow lights for a large part of the day.

Should I soak 4 o’clock seeds before planting?

When growing four o’clock from seed, we recommend either (or both) a good overnight soak in lukewarm water, or mechanical stratification by scoring or lightly sanding the seeds to assist in germination.

What time of year do 4 O clocks bloom?


Four o’clocks come in a variety of shades and colors. They bloom in summer through fall and may have a strong, sweet-smelling fragrance when open (but sometimes have no noticeable scent). Flowers are borne in terminal or axillary clusters of one to several flowers.

Are 4 o’clock flowers invasive?


Four-o’clocks are not considered serious exotic pests, are not known to invade natural areas and are options for gardeners interested in colorful, fragrant flowers that attract pollinators. DNR does not promote the use of non-native plants in natural areas, or exotics considered aggressively invasive.)

How do you winterize 4 O clocks?

Cut a few holes in a cardboard box to provide air circulation, then cover the bottom of the box with a thick layer of newspapers or brown paper bags and store the tubers in the box. If you have several tubers, stack them up to three layers deep, with a thick layer of newspapers or brown paper bags between each layer.

Do hummingbirds like 4 o clocks?

Hardiness Zones. Named for the time of day the bloom opens, four o’clocks will attract hummingbirds and nocturnal pollinators to your garden. This bushy plant reseeds readily, producing hundreds of large black seeds that resemble hand grenades.

Do four o’clocks need support?


Choose the best location for growing four o’clocks Plants often sprawl and can be 2-3 feet tall and 1-2 feet wide. Larger plants do best with some support as the branches are very brittle. Four o’clocks thrive in areas with plenty of sunlight, but also grow in partial shade.

What grows well with four o clocks?

In the cottage garden, grow four o’clocks with other drought-tolerant plants like lantana, melampodium and Goldstrum rudbeckia. If growing in morning sun and afternoon shade, one of the best companions is the summer phlox.

Should four o’clocks be cut back in fall?


No pruning is really required, but if you remove wilted flowers when they appear, this will enhance production of new flowers. Even though it tends to become invasive because four o’clock flower re-sows itself year after year, it is still quite easy to control its growth by pulling out excess plants when they sprout.

How cold hardy are 4 o clocks?

Four o’clock is a tender perennial, meaning that the plant doesn’t tolerate cold weather. Four o’clock survives in the ground with a good protective winter covering in hardiness zones 8 and 9.

How do you start 4 O clocks from seed indoors?

Why won’t my four o’clocks bloom?


If this is the case, there’s, unfortunately, not much you can do other than wait it out, or sneak outside in the dead of night to see if they’re blooming after all. A lack of adequate phosphorus may also be to blame. Giving the plants some high-phosphorus fertilizer or adding bone meal to the soil can help with this.

How do you start 4 O clocks?


Four O’clock seeds germinate quickly, and grow fast, up to 2-4 feet. Keep the seed bed moderately moist during germination. Plant Four O’clock seeds directly into the garden, just before the last frost in your area. Cover seeds with 1/4″ of soil.

Are 4 O clocks toxic to dogs?

You are right: Japanese beetles love to dine on four o’clocks, and according to several university sources these plants are poisonous to them. They are also toxic to people and pets. They can cause vomiting and diarrhea if eaten and the sap can cause dermatitis.

Can four o’clocks grow in pots?

You can also grow four o clocks in 1 to 5 gallon-sized pots growing 2 to 5 plants per pot depending on the pot size. Keep the containers well watered and fertilized monthly. Keep plants well watered and weeded. Fertilize in mid summer with an organic plant food to spur more growth and flowering.

How deep do you plant 4 o’clock tubers?

If you can’t tell which side of the tuber is up or down, plant it on its side, 2 inches below the soil line. Once the tuber puts forth growth, carefully dig it up and replant vertically. Once the four o’clocks emerge from the ground, evenly sprinkle 7 tablespoons of 10-10-10 fertilizer for every 10 square feet.

What do you do with 4 o clocks in the fall?

Allow the four-o’clock plants to die to the ground. This is usually after the first freeze of the fall or winter season. Leave the dead plant material on top of the ground so you know the approximate location of the tubers you need to dig and store over the winter.

What is a hummingbird’s favorite flower?


Brightly-colored flowers that are tubular tend to produce the most nectar, and are particularly attractive to hummingbirds. These include perennials such as bee balms, columbines, daylilies, and lupines; biennials such as foxgloves and hollyhocks; and many annuals, including cleomes, impatiens, and petunias.

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