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Argyranthemum Pot 10,50cm - Konstantidis Plants - Productions of Ornamental Plants

Argyranthemum Pot 10,50cm

Argyranthemums grow best in the greenhouse under high light conditions. Supplemental lighting can be used in northern climates under dark, cloudy conditions. Bright, growing conditions coupled with cool to moderate temperatures produce high-quality plants.

Description

Moisture: Media should be allowed to dry between irrigations. Severe overwatering can lead to Botrytis and Fungal Root Rot, while severe under-watering and drought stress can result in bottom leaf yellowing and necrosis.

Fertilizer: 200 – 250 ppm nitrogen. Argyranthemums are moderate feeders. Monitor EC levels and leach with clear water as needed to avoid fertilizer salt buildup. They grow best when using a blend of Cal-Mag (i.e. 15-5-15, 14-4-14, etc.) and ammonium-containing (i.e. 20-10-20, 15-15-15, etc.) fertilizers. Cal-Mag types contain primarily nitrate nitrogen and help to promote toned growth, smaller leaves and media pH levels above 6. Ammonium nitrogen will encourage softer growth, larger leaves, higher media EC levels and lower media pH. A supplemental iron chelate (Sprint 330) or iron sulfate drench can be used at 2 – 4 ounces/100 gallon to correct iron deficiency (young leaf tip yellowing) when media pH levels have gotten well above 6. Light: 5,000 – 7,000 foot candles.

Argyranthemums grow best in the greenhouse under high light conditions. Supplemental lighting can be used in northern climates under dark, cloudy conditions. Bright, growing conditions coupled with cool to moderate temperatures produce high-quality plants.

Media:

  • pH: 5.8 – 6.2. Keep pH down in the low to mid 5s to avoid iron deficiency and tip yellowing.
  • EC: 2 – 2.2 mS/cm (in an SME, saturated media extract).

Temperature: 65° – 75°F (18° – 24°C) day and 50° – 60°F (10° – 15°C) night.