Technical Information Bulletin

Category: Production

SUBJECT: Miniature Poinsettia (2 1/2" -  3" / 6-8cm) Production Schedule

Eckespoint® Freedom™ Family, Punch™ Family, Winter Rose™ Family or Peter Jacobsen’s™ Pepride Family.

The schedule below provides a basic guideline of key activities for a successful miniature crop (pinched or non-pinched). An ebb and flood water system is recommended as fertilization will cause unacceptable foliar damage. Use of irrigation tubes is prohibitive due to the tight spacing (6 per square foot for non-pinched or 5 per square foot pinched plants). Capillary mats are not encouraged as they stay too wet and encourage stretch.

Fertilizer levels should be maintained at about 200 ppm using a balanced fertilizer appropriate for poinsettias. With frequent watering (2 or 3 times per day depending upon weather), fertilizer is not applied with every irrigation. Clear water will help avoid any salts build up and minimize burn in the event the soil becomes too dry.

Regular application of chemical growth regulator is required to keep plants short (8 inches total). Cycocel® sprays at 1000 ppm should begin approximately one week past “sticking” of the unrooted cutting. For Winter Rose, try to apply all growth regulators in the initial 6 weeks of the crop. Later applications on cultivars like Freedom will reduce bracts to a desirable size. Use Bonzi® as a light drench (.25 ppm) late in the crop only if needed. Freedom is more likely to stretch than Pepride, but the height of both should be tracked closely.

Grow under lower light intensities of 3500 foot candles/36,600 lux. Temperatures are like standard poinsettia production, but high light and limited soil moisture retention make it easy to stress plants and cause damage.

Marathon® (Imidacloprid) is suggested for whitefly control. It is difficult to spray without damaging the plants or over-turning the pots.

If using lights to delay flowering, turn off the lights the number of weeks before sale date, corresponding to the response time of each variety. The small size of these finished plants makes it important to manage crop timing for maximum freshness.

Pinched Plants for Christmas Season Sales:

Date (Wk #)

Activity

Comments

8/27 (# 35)

Stick URC

Use small cuttings
(1.5” / 4 cm)

9/03– 10/25

Cycocel

1000 ppm weekly

9/17 (# 38)

Pinch

Leave 4-5 nodes only on Pepride or Winter Rose, 3-4 nodes on other cultivars

9/17 (# 38)

Marathon

Avoid leaching 1 week

10/8 (#41)

Remove Old Leaves

Large leaves only to allow new small foliage to show

11/1-11/12

Bonzi

.25 ppm drench if needed

11/26 (# 47)

Sell

 

Non-Pinched Plants for Christmas Season Sales:

Date (Wk #)

Activity

Comments

9/10 (# 37)

Stick URC

Use small cuttings
(1.5”/4 cm)

9/17– 10/25

Cycocel

1000 ppm weekly

10/1 (# 40)

Marathon

Avoid leaching 1 week

11/1 – 11/12

Bonzi

.25 ppm drench if needed

11/26 (# 47)

Sell

 

 

Miniature Poinsettias In Production

 

 

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We hope the information provided will be helpful. It is based upon data and knowledge ( including information provided by the recipient) considered to be true and accurate, but without independent investigation and is offered for the recipient's consideration, investigation and verification, but we do not warrant the results to be obtained. Please read all statement, recommendations, or suggestions in conjunction with any conditions of sale or use which apply to any products, or systems recommended by us. No statement, recommendation, or suggestion is intended for any use which would infringe any patent/copyright.