Boston Pickler Cucumbers are partial to warmer weather. Make sure to plant them when daytime temperatures are above 70 degrees. These incredible cukes are very hearty and resistant to powdery and downy mildew. The secret to continuous yields is picking these picklers as soon as they are between three to five inches in length. Cut the fruit from the vine leaving a short section of the stem on the fruit. Use your hands to brush any spines off your cucumbers.