It depends on which “poppy” you’re asking about. Here are the likely interpretations and guidance: If you mean a Remembrance poppy (the red flower worn for veterans):

• You typically wear it during the Remembrance period and remove it after November 11. Many people place it at a gravesite or cenotaph after the ceremony, or remove it at the end of the day on November 11. The exact practice varies by tradition and personal preference. If you’re at a formal event or ceremony, follow the organizers’ guidance. For context, multiple sources describe removing or placing the poppy after Remembrance Day ceremonies.

If you mean a poppy seed plant (Papaver species) and you’re asking about post- bloom care or removing spent blooms:

• After flowering finishes, you can deadhead to encourage further flowering or allow seeds to form if you want to collect them. In many garden guides, deadheading or cutting back faded flowers helps promote new blooms, and some poppies are allowed to self-seed. For general post-bloom care, many horticulture references note removing spent flower heads and tidying up the plant after the blooming period.

If you mean a surgical dressing or incision dressing (less common):

• There are typical postoperative care steps where dressings are changed or removed according to the surgeon’s instructions, usually within 7–10 days as the incision heals, and you should avoid pulling or reopening the wound. This is standard guidance found in postoperative instructions from medical facilities.

If you can clarify which type of poppy you’re referring to (Remembrance poppy, garden poppy, or medical/postoperative context), I can give you more precise, step-by-step guidance.