Growing cucumbers in Boston

We've successfully grown marketmore cucumbers from commercially grown starts in our garden for years, but buying the starts doesn't seem nearly as efficient as starting my own cucumbers from seed.

Last year, I direct sowed cucumbers in the garden and got nowhere. We got 1 or 2 cucumbers from the 20 or so seeds I planted. The few seeds that sprouted never really grew. This year, I started the seeds indoors in newspaper pots (persian cucumbers and an asian variety) in late April. My first problem was that a sunny south-facing window sill does not provide enough sunlight to start seedlings. I need to get a grow light. The seedlings emerged quickly enough, but they grew tall and spindly and not thick and strong. Nonetheless, I planted them out where I knew they would get a lot more sun and hoped for the best.

Late May and early June have served us a hearty helping of cold, rainy weather - which is not a curcurbit's best friend. My seedlings languished. Several died (hey, that's why you plant so many!). Facing the terror of another summer without cucumbers, I went to the greenhouse and bought 2 well-established marketmore seedlings ($3.99 for both), and started feeding everything regularly.

There is some sign of hope amoungst the seedlings I started myself, but can you see the difference between the vigorous 4-leafed marketmore in the bottom left and the other plants in the picture? These cukes get sun from about 12:30 until 7:30 or so in the evening and 2-3 inches of water per week. I'm hoping the weather warms some more, and we get some cucumbers this summer!