Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to harvest sunflower seeds [title] Wait until the sunflower begins to wilt. [step] Sunflowers are ready to harvest once the heads become brown. If you have a particularly wet season however, they can go mouldy [if this is the case you will need to cut off the head once the back of it is yellowing and allow the drying process to continue in a greenhouse or shed].

Ending1: You should prepare them for the drying process once the back of the head begins to turn yellow to yellow-brown. [substeps] In order to harvest the seeds, the sunflower head must be completely dry. Ending2: [title] Cool the sunflower before moving on to the next step. [step] Sunflower seeds don't dry out well left exposed, hence this method will be more labor intensive than the other methods. Ending3: Either wait until after mid-summer (december to november) or at the earliest. [title] Use a sharp kitchen knife to slice the heads into small pieces. Ending4: Green sunflowers grow best in warm temperatures of around 50-75 ° f (10-13 ° c). [title] Cut the rhizomes in a green vase or similar container.

Answer format: ending1/ending2/ending3/ending4