Jefferson Seed Library

Four O’ Clock

Loved by hummingbirds, these flowers bloom from midsummer until frost. Four O’ Clocks are easy to maintain and are a good ‘working’ flower as they are an excellent trap crop for Japanese beetles!

  • Variety
Kaleidoscope
  • Scientific Name
Mirabilis jalapa 
  • Trap Crop
Can be used as a trap crop
  • Growing Level
Easy
  • Seed Saving Level
Easy
  • Seed Storage
2 years if properly stored
  • Life Cycle
Annual, Perennial
  • Germination Time
7-10 days
  • Height
30”
  • Light Requirements
Full sun
  • Blooms in
60-65 days
  • “Check Out” Month See Upcoming Events for specific “check out” dates.
March, April and May
  • In Stock?
No

 

Four O' Clock Kaleidoscope

Growing Tips

Container Friendly

When to Start

 

Start indoors: 6-8 weeks before the last frost date. (Mid-Feb – Mid-Mar for Jefferson, GA)

Direct Sow: After the danger of frost has passed. Soak seeds overnight to aid germination. (May 1 for Jefferson, GA)

 

How to Start

 

Soak seeds overnight to aid germination. Start indoors 6-8 weeks before the last frost date in spring. (March for GA.) Transplant after hardening off and the danger of frost has passed. Or direct sow ¼ inch deep into full sun, well-draining soil after the danger of frost has passed. (May 1 for Jefferson, GA) Thin or space to  12-18 inches.

 

Loved by hummingbirds, these flowers bloom from midsummer until frost. They get their name as they bloom around 4:00 each day. The bloom times are said to correspond to changes in light and temperature. So, they open in the cool of the evening. Typically 4-8 pm or earlier on cloudy days.

 

Care

 

They are drought tolerant and need little care, other than cleaning up in the fall and thinning as they are prolific self-seeders and can be aggressive if not maintained.

 

Trap Crop

 

Four O’ Clocks also make a good trap crop for Japanese beetles. If you struggle with Japanese beetles try one of the three methods of trap cropping to help control these pests!

 

Special Note:

Plants and seeds are poisonous if ingested.  

 

 

My personal experience

I find four o’ clocks very attractive. They attract hummingbirds, which are fun to watch. And once established I don’t do anything–not even water them. Well, every once and a while I’ll thin them out a bit as they will spread. They also make a good companion plant as the Japanese beetles prefer to eat the four o’ clocks over things like blackberries and okra.

My Four O' Clocks Picture by Elizabeth Jones

Seed Saving

Isolation Distance

 

Insect and hummingbird dependent for pollination. Isolate by ½ mile or cage or bag blooms to prevent cross-pollination.

 

Instructions

Select healthy, robust plants free of any signs of disease or insect infestation for seeds. Seeds carry the traits of the parent plant. Choose plants that exhibit the traits you wish to preserve. Consider bloom size, color, and shape, as well as blooming time.

 

Allow the flowers to mature on the plant. As the flowers fade they are replaced by a dark,  barrel-shaped seed. The seeds are difficult to find once they fall to the ground. You can use mesh bags to cover the flowers to keep the seed from falling to the ground. Or, wearing gloves, gently remove the seed from the flower.

 

The seeds can cause skin irritation, so wearing gloves when handling them is recommended.

Look through the seeds and throw away any with signs of cra,cks, mold, or other signs of damage.

Features

  • Attracts hummingbirds
  • Attracts pollinators
  • Fragrant
  • Deer resistant
  • Easy maintenance
  • Container friendly
  • Drought tolerant
  • Can be used as a trap crop
 

Soak seeds overnight to aid germination.

You May Also Like: 

Starting Seeds Indoors

Pest Management

Trap cropping: How to keep pests out of your main crop.

Sources:

Gardeningknowhow.com

Burpee.com

NC State Extension