1: 1. Overcrowding can stunt growth. 2. Lack of sunlight hinders flowering. 3. Improper watering causes root rot. 4. Ignoring pests leads to damage. 5. Neglecting deadheading affects re-blooming.

2: 1. Planting in poor soil affects health. 2. Skipping fertilization results in weak plants. 3. Incorrect pruning delays growth. 4. Inadequate mulching invites weeds. 5. Not supporting tall varieties causes breakage.

3: 1. Choosing wrong variety for climate impacts growth. 2. Planting too deeply restricts growth. 3. Improper spacing affects air circulation. 4. Failing to remove faded blooms slows new growth. 5. Not removing yellow leaves affects overall health.

4: 1. Ignoring temperature requirements leads to failure. 2. Using contaminated tools spreads diseases. 3. Overwatering causes root suffocation. 4. Using wrong pesticides harms beneficial insects. 5. Allowing soil to dry out affects growth.

5: 1. Forgetting to deadhead reduces flowering. 2. Ignoring fertilization leads to nutrient deficiency. 3. Inadequate support causes bending. 4. Overcrowding encourages diseases. 5. Using wrong containers limits root growth.

6: 1. Neglecting to mulch invites pests. 2. Planting too late disrupts growth cycle. 3. Skipping soil testing affects nutrient levels. 4. Overlooking pH levels impacts health. 5. Over-pruning decreases flowering.

7: 1. Not checking for diseases hinders growth. 2. Neglecting to pinch encourages legginess. 3. Failing to stake tall varieties causes leaning. 4. Overlooking drainage issues leads to root rot. 5. Using poor quality seeds affects germination.

8: 1. Ignoring weather changes harms plants. 2. Not deadheading promotes seed production. 3. Insufficient watering leads to wilting. 4. Planting too closely results in competition. 5. Overlooking companion planting affects growth.

9: 1. Using wrong gardening techniques affects success. 2. Forgetting to adjust watering after rain affects health. 3. Improper harvesting affects future blooms. 4. Not protecting from harsh weather conditions damages plants. 5. Overlooking occasional feeding slows growth.