"The other day when I hit one off Bronson [Arroyo], and they caught it at the wall, I came in and Dale [Sveum] said, 'You should have at least 10 [home runs] right now,'" DeJesus said. "When your manager says that, I'll take 10."
Justin Germano (2-2) benefited from the fireworks, as the Cubs won for just the third time in the last 15 games. Germano posted the longest outing of his four starts since he was acquired from the Red Sox, permitting just two runs on five hits over 6 1/3 innings.
"He's a crafty righty, and you have to give credit to him," Astros catcher Jason Castro said. "He did a great job hitting his spots and keeping guys off-balance and playing the front-to-back game. You've got to give credit to him."
Former Cubs infielder Scott Moore gave the Astros the lead with his second home run in as many games leading off the second. Germano wasn't paying attention to -- or perhaps chose to ignore -- Wrigley's wind currents until then.
"I just tried to keep the ball down," Germano said. "I wasn't aware of [the wind] until that ball went out. I thought it was a fly ball off the bat, and I turned around and saw [Alfonso Soriano] sprinting to the wall. I knew it was going to be trouble then. I tried to be aggressive and keep the ball down in the zone and try to get them to hit the ball."
The Cubs tied it in the home half, when Starlin Castro singled with one out and scored one out later on Brett Jackson's triple to right-center. It was Jackson's first extra-base hit and first RBI since being promoted to the big leagues on Aug. 5. He added a double in the sixth to raise his average to .188.
"I have a lot of confidence in the things we're working on," Jackson said. "It's baby steps, but it's moving in the right direction."
DeJesus, in his first season with the Cubs, hit his first home run at Wrigley and third of the season leading off the third as part of a four-hit effort that matched a career high. Two outs later, Soriano walked and Castro followed with his 12th home run to push the lead to 4-1.
DeJesus, who was hitting .266 at Wrigley entering Wednesday, added his second home run with one on in the fourth to make it 6-1. It was his fourth career multihomer game, and first since Aug. 6, 2011, at Tampa Bay.
"He's been snake-bit on balls he's hit like that with the wind blowing in," Sveum said.
How important was the offense? The Cubs are 35-21 when scoring at least four runs and 11-49 when they total three runs or fewer.
Bud Norris (5-10) took the loss and will likely have a nasty bruise to show for it. He was hit on the left foot by Josh Vitters' line drive in the fourth and had to leave the game. Norris served up six runs on eight hits over 3 1/3 innings.
The Cubs are counting on DeJesus for more than just an occasional home run. He's one of the few veterans left after the roster shakeup at the Trade Deadline. It wasn't that long ago that DeJesus was one of the kids in Kansas City, watching the turnover there. He learned from players like Mike Sweeney. Now, the Cubs hope Jackson, Vitters and others can learn from DeJesus.
"We're just going to have to keep moving forward," DeJesus said. "We weren't picked to do anything this year. We were playing good baseball before everyone left [at the Deadline]. Now it's time for the young guys, it's the young guys' turn to come up and do their thing in the field and learn on the job. Hopefully, us veterans can help them out."
"The guys who have been around are seeing a lot of change," Jackson said. "I think with the win today, it feels like the team is starting to settle together -- at least it feels that way for me."