The rule of thumb advice on depth of bulbs is to plant twice the width of the bulb. Is this the top of the bulb or the bottom of the bulb for the depth. So if the bulb is 2cm wide, should the top of the bulb be 4cm from the top of the soil or 4cm from the bottom of the bulb? Thanks, Gordon.
Great question. It is to the top of the bulb. So if the bulb is 5cm wide, plant it 10cm deep, so the tip is 10cm below the soil. Make sure you apply Tui Bulb Food at planting time. Apply 200g (approx. 2/3 cup) per square metre of garden. Mix thoroughly into the soil and water in well.